work-with-timezone-effectively.html

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Work with timezone effectively</title>
  <meta charset="utf-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1" />
  <link href="/feeds/all.atom.xml" type="application/atom+xml" rel="alternate" title="Carson's Tech Hut Full Atom Feed" />
  <link href="/feeds/python-tricks.atom.xml" type="application/atom+xml" rel="alternate" title="Carson's Tech Hut Categories Atom Feed" />

  <script>
  /* Javascript code to toggle between adding and removing the
  "responsive" class to nav when the user clicks on the icon */
  function myFunction() {
    var x = document.getElementById("nav-bar");
    if (x.className === "nav") {
      x.className += " responsive";
    } else {
      x.className = "nav";
    }
  }
  </script>

</head>

<body>
  <div class="navigation pure-menu pure-menu-horizontal">
    <div class="nav", id="nav-bar">
      <a href="/" class="page-container pure-menu-heading  pure-menu-link nav">Carson's Tech Hut</a>
      <ul class="pure-menu-list">
          <li class="pure-menu-item"><a href="../archives.html" class="pure-menu-link">All posts</a></li>
          <li class="pure-menu-item"><a href="../categories.html" class="pure-menu-link">Categories</a></li>
          <li class="pure-menu-item"><a href="../tags.html" class="pure-menu-link">Tags</a></li>
      </ul>
      <a href="javascript:void(0);" class="icon pure-menu-link" onclick="myFunction()">
        <i class="fas fa-bars"></i>
      </a>
    </div>
  </div>

<div class="page-container">
    <div class="entry-content">
      <div class="post-meta pure-u">
          <div class="pure-u">
              <img src="../theme/images/authors/Logo.png" class="post-avatar" alt="Go to the profile of Carson Zhang">
          </div>
          <div class="pure-u meta-data">
              <a href="/author/carson-zhang.html" class="category">Carson Zhang</a><br />
              
            Senior Software Developer
        <br />
              <abbr title="2018-07-10T20:00:00-06:00">Tue 10 July 2018</abbr>
              • 45 min read
          </div>
      </div>
    </div>

    <div class="article-header-container">
        <div class="background-image-container">

            <div class="background-image-small">
                <div class="title-container">
                    <h1>Work with timezone effectively</h1>
                </div>
            </div>
        </div>
    </div>

    <div class="entry-content">
        <!--
        <div align="right">
          Author:<br>
              <a href="/author/carson-zhang.html">Carson Zhang</a><br>
        </div>
        -->

        <style type="text/css">/*!
*
* IPython notebook
*
*/
/* CSS font colors for translated ANSI colors. */
.ansibold {
  font-weight: bold;
}
/* use dark versions for foreground, to improve visibility */
.ansiblack {
  color: black;
}
.ansired {
  color: darkred;
}
.ansigreen {
  color: darkgreen;
}
.ansiyellow {
  color: #c4a000;
}
.ansiblue {
  color: darkblue;
}
.ansipurple {
  color: darkviolet;
}
.ansicyan {
  color: steelblue;
}
.ansigray {
  color: gray;
}
/* and light for background, for the same reason */
.ansibgblack {
  background-color: black;
}
.ansibgred {
  background-color: red;
}
.ansibggreen {
  background-color: green;
}
.ansibgyellow {
  background-color: yellow;
}
.ansibgblue {
  background-color: blue;
}
.ansibgpurple {
  background-color: magenta;
}
.ansibgcyan {
  background-color: cyan;
}
.ansibggray {
  background-color: gray;
}
div.cell {
  /* Old browsers */
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-box-align: stretch;
  display: -moz-box;
  -moz-box-orient: vertical;
  -moz-box-align: stretch;
  display: box;
  box-orient: vertical;
  box-align: stretch;
  /* Modern browsers */
  display: flex;
  flex-direction: column;
  align-items: stretch;
  border-radius: 2px;
  box-sizing: border-box;
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  border-width: 1px;
  border-style: solid;
  border-color: transparent;
  width: 100%;
  padding: 5px;
  /* This acts as a spacer between cells, that is outside the border */
  margin: 0px;
  outline: none;
  border-left-width: 1px;
  padding-left: 5px;
  background: linear-gradient(to right, transparent -40px, transparent 1px, transparent 1px, transparent 100%);
}
div.cell.jupyter-soft-selected {
  border-left-color: #90CAF9;
  border-left-color: #E3F2FD;
  border-left-width: 1px;
  padding-left: 5px;
  border-right-color: #E3F2FD;
  border-right-width: 1px;
  background: #E3F2FD;
}
@media print {
  div.cell.jupyter-soft-selected {
    border-color: transparent;
  }
}
div.cell.selected {
  border-color: #ababab;
  border-left-width: 0px;
  padding-left: 6px;
  background: linear-gradient(to right, #42A5F5 -40px, #42A5F5 5px, transparent 5px, transparent 100%);
}
@media print {
  div.cell.selected {
    border-color: transparent;
  }
}
div.cell.selected.jupyter-soft-selected {
  border-left-width: 0;
  padding-left: 6px;
  background: linear-gradient(to right, #42A5F5 -40px, #42A5F5 7px, #E3F2FD 7px, #E3F2FD 100%);
}
.edit_mode div.cell.selected {
  border-color: #66BB6A;
  border-left-width: 0px;
  padding-left: 6px;
  background: linear-gradient(to right, #66BB6A -40px, #66BB6A 5px, transparent 5px, transparent 100%);
}
@media print {
  .edit_mode div.cell.selected {
    border-color: transparent;
  }
}
.prompt {
  /* This needs to be wide enough for 3 digit prompt numbers: In[100]: */
  min-width: 14ex;
  /* This padding is tuned to match the padding on the CodeMirror editor. */
  padding: 0.4em;
  margin: 0px;
  font-family: monospace;
  text-align: right;
  /* This has to match that of the the CodeMirror class line-height below */
  line-height: 1.21429em;
  /* Don't highlight prompt number selection */
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  /* Use default cursor */
  cursor: default;
}
@media (max-width: 540px) {
  .prompt {
    text-align: left;
  }
}
div.inner_cell {
  min-width: 0;
  /* Old browsers */
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-box-align: stretch;
  display: -moz-box;
  -moz-box-orient: vertical;
  -moz-box-align: stretch;
  display: box;
  box-orient: vertical;
  box-align: stretch;
  /* Modern browsers */
  display: flex;
  flex-direction: column;
  align-items: stretch;
  /* Old browsers */
  -webkit-box-flex: 1;
  -moz-box-flex: 1;
  box-flex: 1;
  /* Modern browsers */
  flex: 1;
}
/* input_area and input_prompt must match in top border and margin for alignment */
div.input_area {
  border: 1px solid #cfcfcf;
  border-radius: 2px;
  background: #f7f7f7;
  line-height: 1.21429em;
}
/* This is needed so that empty prompt areas can collapse to zero height when there
   is no content in the output_subarea and the prompt. The main purpose of this is
   to make sure that empty JavaScript output_subareas have no height. */
div.prompt:empty {
  padding-top: 0;
  padding-bottom: 0;
}
div.unrecognized_cell {
  padding: 5px 5px 5px 0px;
  /* Old browsers */
  display: -webkit-box;
  -webkit-box-orient: horizontal;
  -webkit-box-align: stretch;
  display: -moz-box;
  -moz-box-orient: horizontal;
  -moz-box-align: stretch;
  display: box;
  box-orient: horizontal;
  box-align: stretch;
  /* Modern browsers */
  display: flex;
  flex-direction: row;
  align-items: stretch;
}
div.unrecognized_cell .inner_cell {
  border-radius: 2px;
  padding: 5px;
  font-weight: bold;
  color: red;
  border: 1px solid #cfcfcf;
  background: #eaeaea;
}
div.unrecognized_cell .inner_cell a {
  color: inherit;
  text-decoration: none;
}
div.unrecognized_cell .inner_cell a:hover {
  color: inherit;
  text-decoration: none;
}
@media (max-width: 540px) {
  div.unrecognized_cell > div.prompt {
    display: none;
  }
}
div.code_cell {
  /* avoid page breaking on code cells when printing */
}
@media print {
  div.code_cell {
    page-break-inside: avoid;
  }
}
/* any special styling for code cells that are currently running goes here */
div.input {
  page-break-inside: avoid;
  /* Old browsers */
  display: -webkit-box;
  -webkit-box-orient: horizontal;
  -webkit-box-align: stretch;
  display: -moz-box;
  -moz-box-orient: horizontal;
  -moz-box-align: stretch;
  display: box;
  box-orient: horizontal;
  box-align: stretch;
  /* Modern browsers */
  display: flex;
  flex-direction: row;
  align-items: stretch;
}
@media (max-width: 540px) {
  div.input {
    /* Old browsers */
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-box-align: stretch;
    display: -moz-box;
    -moz-box-orient: vertical;
    -moz-box-align: stretch;
    display: box;
    box-orient: vertical;
    box-align: stretch;
    /* Modern browsers */
    display: flex;
    flex-direction: column;
    align-items: stretch;
  }
}
/* input_area and input_prompt must match in top border and margin for alignment */
div.input_prompt {
  color: #303F9F;
  border-top: 1px solid transparent;
}
div.input_area > div.highlight {
  margin: 0.4em;
  border: none;
  padding: 0px;
  background-color: transparent;
}
div.input_area > div.highlight > pre {
  margin: 0px;
  border: none;
  padding: 0px;
  background-color: transparent;
}
/* The following gets added to the <head> if it is detected that the user has a
 * monospace font with inconsistent normal/bold/italic height.  See
 * notebookmain.js.  Such fonts will have keywords vertically offset with
 * respect to the rest of the text.  The user should select a better font.
 * See: https://github.com/ipython/ipython/issues/1503
 *
 * .CodeMirror span {
 *      vertical-align: bottom;
 * }
 */
.CodeMirror {
  line-height: 1.21429em;
  /* Changed from 1em to our global default */
  font-size: 14px;
  height: auto;
  /* Changed to auto to autogrow */
  background: none;
  /* Changed from white to allow our bg to show through */
}
.CodeMirror-scroll {
  /*  The CodeMirror docs are a bit fuzzy on if overflow-y should be hidden or visible.*/
  /*  We have found that if it is visible, vertical scrollbars appear with font size changes.*/
  overflow-y: hidden;
  overflow-x: auto;
}
.CodeMirror-lines {
  /* In CM2, this used to be 0.4em, but in CM3 it went to 4px. We need the em value because */
  /* we have set a different line-height and want this to scale with that. */
  padding: 0.4em;
}
.CodeMirror-linenumber {
  padding: 0 8px 0 4px;
}
.CodeMirror-gutters {
  border-bottom-left-radius: 2px;
  border-top-left-radius: 2px;
}
.CodeMirror pre {
  /* In CM3 this went to 4px from 0 in CM2. We need the 0 value because of how we size */
  /* .CodeMirror-lines */
  padding: 0;
  border: 0;
  border-radius: 0;
}
/*

Original style from softwaremaniacs.org (c) Ivan Sagalaev <Maniac@SoftwareManiacs.Org>
Adapted from GitHub theme

*/
.highlight-base {
  color: #000;
}
.highlight-variable {
  color: #000;
}
.highlight-variable-2 {
  color: #1a1a1a;
}
.highlight-variable-3 {
  color: #333333;
}
.highlight-string {
  color: #BA2121;
}
.highlight-comment {
  color: #408080;
  font-style: italic;
}
.highlight-number {
  color: #080;
}
.highlight-atom {
  color: #88F;
}
.highlight-keyword {
  color: #008000;
  font-weight: bold;
}
.highlight-builtin {
  color: #008000;
}
.highlight-error {
  color: #f00;
}
.highlight-operator {
  color: #AA22FF;
  font-weight: bold;
}
.highlight-meta {
  color: #AA22FF;
}
/* previously not defined, copying from default codemirror */
.highlight-def {
  color: #00f;
}
.highlight-string-2 {
  color: #f50;
}
.highlight-qualifier {
  color: #555;
}
.highlight-bracket {
  color: #997;
}
.highlight-tag {
  color: #170;
}
.highlight-attribute {
  color: #00c;
}
.highlight-header {
  color: blue;
}
.highlight-quote {
  color: #090;
}
.highlight-link {
  color: #00c;
}
/* apply the same style to codemirror */
.cm-s-ipython span.cm-keyword {
  color: #008000;
  font-weight: bold;
}
.cm-s-ipython span.cm-atom {
  color: #88F;
}
.cm-s-ipython span.cm-number {
  color: #080;
}
.cm-s-ipython span.cm-def {
  color: #00f;
}
.cm-s-ipython span.cm-variable {
  color: #000;
}
.cm-s-ipython span.cm-operator {
  color: #AA22FF;
  font-weight: bold;
}
.cm-s-ipython span.cm-variable-2 {
  color: #1a1a1a;
}
.cm-s-ipython span.cm-variable-3 {
  color: #333333;
}
.cm-s-ipython span.cm-comment {
  color: #408080;
  font-style: italic;
}
.cm-s-ipython span.cm-string {
  color: #BA2121;
}
.cm-s-ipython span.cm-string-2 {
  color: #f50;
}
.cm-s-ipython span.cm-meta {
  color: #AA22FF;
}
.cm-s-ipython span.cm-qualifier {
  color: #555;
}
.cm-s-ipython span.cm-builtin {
  color: #008000;
}
.cm-s-ipython span.cm-bracket {
  color: #997;
}
.cm-s-ipython span.cm-tag {
  color: #170;
}
.cm-s-ipython span.cm-attribute {
  color: #00c;
}
.cm-s-ipython span.cm-header {
  color: blue;
}
.cm-s-ipython span.cm-quote {
  color: #090;
}
.cm-s-ipython span.cm-link {
  color: #00c;
}
.cm-s-ipython span.cm-error {
  color: #f00;
}
.cm-s-ipython span.cm-tab {
  background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADAAAAAMCAYAAAAkuj5RAAAAAXNSR0IArs4c6QAAAGFJREFUSMft1LsRQFAQheHPowAKoACx3IgEKtaEHujDjORSgWTH/ZOdnZOcM/sgk/kFFWY0qV8foQwS4MKBCS3qR6ixBJvElOobYAtivseIE120FaowJPN75GMu8j/LfMwNjh4HUpwg4LUAAAAASUVORK5CYII=);
  background-position: right;
  background-repeat: no-repeat;
}
div.output_wrapper {
  /* this position must be relative to enable descendents to be absolute within it */
  position: relative;
  /* Old browsers */
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-box-align: stretch;
  display: -moz-box;
  -moz-box-orient: vertical;
  -moz-box-align: stretch;
  display: box;
  box-orient: vertical;
  box-align: stretch;
  /* Modern browsers */
  display: flex;
  flex-direction: column;
  align-items: stretch;
  z-index: 1;
}
/* class for the output area when it should be height-limited */
div.output_scroll {
  /* ideally, this would be max-height, but FF barfs all over that */
  height: 24em;
  /* FF needs this *and the wrapper* to specify full width, or it will shrinkwrap */
  width: 100%;
  overflow: auto;
  border-radius: 2px;
  -webkit-box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.8);
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.8);
  display: block;
}
/* output div while it is collapsed */
div.output_collapsed {
  margin: 0px;
  padding: 0px;
  /* Old browsers */
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-box-align: stretch;
  display: -moz-box;
  -moz-box-orient: vertical;
  -moz-box-align: stretch;
  display: box;
  box-orient: vertical;
  box-align: stretch;
  /* Modern browsers */
  display: flex;
  flex-direction: column;
  align-items: stretch;
}
div.out_prompt_overlay {
  height: 100%;
  padding: 0px 0.4em;
  position: absolute;
  border-radius: 2px;
}
div.out_prompt_overlay:hover {
  /* use inner shadow to get border that is computed the same on WebKit/FF */
  -webkit-box-shadow: inset 0 0 1px #000;
  box-shadow: inset 0 0 1px #000;
  background: rgba(240, 240, 240, 0.5);
}
div.output_prompt {
  color: #D84315;
}
/* This class is the outer container of all output sections. */
div.output_area {
  padding: 0px;
  page-break-inside: avoid;
  /* Old browsers */
  display: -webkit-box;
  -webkit-box-orient: horizontal;
  -webkit-box-align: stretch;
  display: -moz-box;
  -moz-box-orient: horizontal;
  -moz-box-align: stretch;
  display: box;
  box-orient: horizontal;
  box-align: stretch;
  /* Modern browsers */
  display: flex;
  flex-direction: row;
  align-items: stretch;
}
div.output_area .MathJax_Display {
  text-align: left !important;
}
div.output_area 
div.output_area 
div.output_area img,
div.output_area svg {
  max-width: 100%;
  height: auto;
}
div.output_area img.unconfined,
div.output_area svg.unconfined {
  max-width: none;
}
/* This is needed to protect the pre formating from global settings such
   as that of bootstrap */
.output {
  /* Old browsers */
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-box-align: stretch;
  display: -moz-box;
  -moz-box-orient: vertical;
  -moz-box-align: stretch;
  display: box;
  box-orient: vertical;
  box-align: stretch;
  /* Modern browsers */
  display: flex;
  flex-direction: column;
  align-items: stretch;
}
@media (max-width: 540px) {
  div.output_area {
    /* Old browsers */
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-box-align: stretch;
    display: -moz-box;
    -moz-box-orient: vertical;
    -moz-box-align: stretch;
    display: box;
    box-orient: vertical;
    box-align: stretch;
    /* Modern browsers */
    display: flex;
    flex-direction: column;
    align-items: stretch;
  }
}
div.output_area pre {
  margin: 0;
  padding: 0;
  border: 0;
  vertical-align: baseline;
  color: black;
  background-color: transparent;
  border-radius: 0;
}
/* This class is for the output subarea inside the output_area and after
   the prompt div. */
div.output_subarea {
  overflow-x: auto;
  padding: 0.4em;
  /* Old browsers */
  -webkit-box-flex: 1;
  -moz-box-flex: 1;
  box-flex: 1;
  /* Modern browsers */
  flex: 1;
  max-width: calc(100% - 14ex);
}
div.output_scroll div.output_subarea {
  overflow-x: visible;
}
/* The rest of the output_* classes are for special styling of the different
   output types */
/* all text output has this class: */
div.output_text {
  text-align: left;
  color: #000;
  /* This has to match that of the the CodeMirror class line-height below */
  line-height: 1.21429em;
}
/* stdout/stderr are 'text' as well as 'stream', but execute_result/error are *not* streams */
div.output_stderr {
  background: #fdd;
  /* very light red background for stderr */
}
div.output_latex {
  text-align: left;
}
/* Empty output_javascript divs should have no height */
div.output_javascript:empty {
  padding: 0;
}
.js-error {
  color: darkred;
}
/* raw_input styles */
div.raw_input_container {
  line-height: 1.21429em;
  padding-top: 5px;
}
pre.raw_input_prompt {
  /* nothing needed here. */
}
input.raw_input {
  font-family: monospace;
  font-size: inherit;
  color: inherit;
  width: auto;
  /* make sure input baseline aligns with prompt */
  vertical-align: baseline;
  /* padding + margin = 0.5em between prompt and cursor */
  padding: 0em 0.25em;
  margin: 0em 0.25em;
}
input.raw_input:focus {
  box-shadow: none;
}
p.p-space {
  margin-bottom: 10px;
}
div.output_unrecognized {
  padding: 5px;
  font-weight: bold;
  color: red;
}
div.output_unrecognized a {
  color: inherit;
  text-decoration: none;
}
div.output_unrecognized a:hover {
  color: inherit;
  text-decoration: none;
}
.rendered_html {
  color: #000;
  /* any extras will just be numbers: */
}



.rendered_html :link {
  text-decoration: underline;
}
.rendered_html :visited {
  text-decoration: underline;
}






.rendered_html h1:first-child {
  margin-top: 0.538em;
}
.rendered_html h2:first-child {
  margin-top: 0.636em;
}
.rendered_html h3:first-child {
  margin-top: 0.777em;
}
.rendered_html h4:first-child {
  margin-top: 1em;
}
.rendered_html h5:first-child {
  margin-top: 1em;
}
.rendered_html h6:first-child {
  margin-top: 1em;
}








.rendered_html * + ul {
  margin-top: 1em;
}
.rendered_html * + ol {
  margin-top: 1em;
}


.rendered_html pre,



.rendered_html tr,
.rendered_html th,

.rendered_html td,


.rendered_html * + table {
  margin-top: 1em;
}

.rendered_html * + p {
  margin-top: 1em;
}

.rendered_html * + img {
  margin-top: 1em;
}
.rendered_html img,

.rendered_html img.unconfined,

div.text_cell {
  /* Old browsers */
  display: -webkit-box;
  -webkit-box-orient: horizontal;
  -webkit-box-align: stretch;
  display: -moz-box;
  -moz-box-orient: horizontal;
  -moz-box-align: stretch;
  display: box;
  box-orient: horizontal;
  box-align: stretch;
  /* Modern browsers */
  display: flex;
  flex-direction: row;
  align-items: stretch;
}
@media (max-width: 540px) {
  div.text_cell > div.prompt {
    display: none;
  }
}
div.text_cell_render {
  /*font-family: "Helvetica Neue", Arial, Helvetica, Geneva, sans-serif;*/
  outline: none;
  resize: none;
  width: inherit;
  border-style: none;
  padding: 0.5em 0.5em 0.5em 0.4em;
  color: #000;
  box-sizing: border-box;
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
}
a.anchor-link:link {
  text-decoration: none;
  padding: 0px 20px;
  visibility: hidden;
}
h1:hover .anchor-link,
h2:hover .anchor-link,
h3:hover .anchor-link,
h4:hover .anchor-link,
h5:hover .anchor-link,
h6:hover .anchor-link {
  visibility: visible;
}
.text_cell.rendered .input_area {
  display: none;
}
.text_cell.rendered 
.text_cell.unrendered .text_cell_render {
  display: none;
}
.cm-header-1,
.cm-header-2,
.cm-header-3,
.cm-header-4,
.cm-header-5,
.cm-header-6 {
  font-weight: bold;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}
.cm-header-1 {
  font-size: 185.7%;
}
.cm-header-2 {
  font-size: 157.1%;
}
.cm-header-3 {
  font-size: 128.6%;
}
.cm-header-4 {
  font-size: 110%;
}
.cm-header-5 {
  font-size: 100%;
  font-style: italic;
}
.cm-header-6 {
  font-size: 100%;
  font-style: italic;
}
</style>
<style type="text/css">.highlight .hll { background-color: #ffffcc }
.highlight  { background: #f8f8f8; }
.highlight .c { color: #408080; font-style: italic } /* Comment */
.highlight .err { border: 1px solid #FF0000 } /* Error */
.highlight .k { color: #008000; font-weight: bold } /* Keyword */
.highlight .o { color: #666666 } /* Operator */
.highlight .ch { color: #408080; font-style: italic } /* Comment.Hashbang */
.highlight .cm { color: #408080; font-style: italic } /* Comment.Multiline */
.highlight .cp { color: #BC7A00 } /* Comment.Preproc */
.highlight .cpf { color: #408080; font-style: italic } /* Comment.PreprocFile */
.highlight .c1 { color: #408080; font-style: italic } /* Comment.Single */
.highlight .cs { color: #408080; font-style: italic } /* Comment.Special */
.highlight .gd { color: #A00000 } /* Generic.Deleted */
.highlight .ge { font-style: italic } /* Generic.Emph */
.highlight .gr { color: #FF0000 } /* Generic.Error */
.highlight .gh { color: #000080; font-weight: bold } /* Generic.Heading */
.highlight .gi { color: #00A000 } /* Generic.Inserted */
.highlight .go { color: #888888 } /* Generic.Output */
.highlight .gp { color: #000080; font-weight: bold } /* Generic.Prompt */
.highlight .gs { font-weight: bold } /* Generic.Strong */
.highlight .gu { color: #800080; font-weight: bold } /* Generic.Subheading */
.highlight .gt { color: #0044DD } /* Generic.Traceback */
.highlight .kc { color: #008000; font-weight: bold } /* Keyword.Constant */
.highlight .kd { color: #008000; font-weight: bold } /* Keyword.Declaration */
.highlight .kn { color: #008000; font-weight: bold } /* Keyword.Namespace */
.highlight .kp { color: #008000 } /* Keyword.Pseudo */
.highlight .kr { color: #008000; font-weight: bold } /* Keyword.Reserved */
.highlight .kt { color: #B00040 } /* Keyword.Type */
.highlight .m { color: #666666 } /* Literal.Number */
.highlight .s { color: #BA2121 } /* Literal.String */
.highlight .na { color: #7D9029 } /* Name.Attribute */
.highlight .nb { color: #008000 } /* Name.Builtin */
.highlight .nc { color: #0000FF; font-weight: bold } /* Name.Class */
.highlight .no { color: #880000 } /* Name.Constant */
.highlight .nd { color: #AA22FF } /* Name.Decorator */
.highlight .ni { color: #999999; font-weight: bold } /* Name.Entity */
.highlight .ne { color: #D2413A; font-weight: bold } /* Name.Exception */
.highlight .nf { color: #0000FF } /* Name.Function */
.highlight .nl { color: #A0A000 } /* Name.Label */
.highlight .nn { color: #0000FF; font-weight: bold } /* Name.Namespace */
.highlight .nt { color: #008000; font-weight: bold } /* Name.Tag */
.highlight .nv { color: #19177C } /* Name.Variable */
.highlight .ow { color: #AA22FF; font-weight: bold } /* Operator.Word */
.highlight .w { color: #bbbbbb } /* Text.Whitespace */
.highlight .mb { color: #666666 } /* Literal.Number.Bin */
.highlight .mf { color: #666666 } /* Literal.Number.Float */
.highlight .mh { color: #666666 } /* Literal.Number.Hex */
.highlight .mi { color: #666666 } /* Literal.Number.Integer */
.highlight .mo { color: #666666 } /* Literal.Number.Oct */
.highlight .sa { color: #BA2121 } /* Literal.String.Affix */
.highlight .sb { color: #BA2121 } /* Literal.String.Backtick */
.highlight .sc { color: #BA2121 } /* Literal.String.Char */
.highlight .dl { color: #BA2121 } /* Literal.String.Delimiter */
.highlight .sd { color: #BA2121; font-style: italic } /* Literal.String.Doc */
.highlight .s2 { color: #BA2121 } /* Literal.String.Double */
.highlight .se { color: #BB6622; font-weight: bold } /* Literal.String.Escape */
.highlight .sh { color: #BA2121 } /* Literal.String.Heredoc */
.highlight .si { color: #BB6688; font-weight: bold } /* Literal.String.Interpol */
.highlight .sx { color: #008000 } /* Literal.String.Other */
.highlight .sr { color: #BB6688 } /* Literal.String.Regex */
.highlight .s1 { color: #BA2121 } /* Literal.String.Single */
.highlight .ss { color: #19177C } /* Literal.String.Symbol */
.highlight .bp { color: #008000 } /* Name.Builtin.Pseudo */
.highlight .fm { color: #0000FF } /* Name.Function.Magic */
.highlight .vc { color: #19177C } /* Name.Variable.Class */
.highlight .vg { color: #19177C } /* Name.Variable.Global */
.highlight .vi { color: #19177C } /* Name.Variable.Instance */
.highlight .vm { color: #19177C } /* Name.Variable.Magic */
.highlight .il { color: #666666 } /* Literal.Number.Integer.Long */</style>
<style type="text/css">
/* Temporary definitions which will become obsolete with Notebook release 5.0 */
.ansi-black-fg { color: #3E424D; }
.ansi-black-bg { background-color: #3E424D; }
.ansi-black-intense-fg { color: #282C36; }
.ansi-black-intense-bg { background-color: #282C36; }
.ansi-red-fg { color: #E75C58; }
.ansi-red-bg { background-color: #E75C58; }
.ansi-red-intense-fg { color: #B22B31; }
.ansi-red-intense-bg { background-color: #B22B31; }
.ansi-green-fg { color: #00A250; }
.ansi-green-bg { background-color: #00A250; }
.ansi-green-intense-fg { color: #007427; }
.ansi-green-intense-bg { background-color: #007427; }
.ansi-yellow-fg { color: #DDB62B; }
.ansi-yellow-bg { background-color: #DDB62B; }
.ansi-yellow-intense-fg { color: #B27D12; }
.ansi-yellow-intense-bg { background-color: #B27D12; }
.ansi-blue-fg { color: #208FFB; }
.ansi-blue-bg { background-color: #208FFB; }
.ansi-blue-intense-fg { color: #0065CA; }
.ansi-blue-intense-bg { background-color: #0065CA; }
.ansi-magenta-fg { color: #D160C4; }
.ansi-magenta-bg { background-color: #D160C4; }
.ansi-magenta-intense-fg { color: #A03196; }
.ansi-magenta-intense-bg { background-color: #A03196; }
.ansi-cyan-fg { color: #60C6C8; }
.ansi-cyan-bg { background-color: #60C6C8; }
.ansi-cyan-intense-fg { color: #258F8F; }
.ansi-cyan-intense-bg { background-color: #258F8F; }
.ansi-white-fg { color: #C5C1B4; }
.ansi-white-bg { background-color: #C5C1B4; }
.ansi-white-intense-fg { color: #A1A6B2; }
.ansi-white-intense-bg { background-color: #A1A6B2; }

.ansi-bold { font-weight: bold; }
</style>
<div class="cell border-box-sizing text_cell rendered"><div class="prompt input_prompt">
</div>
<div class="inner_cell">
<div class="text_cell_render border-box-sizing rendered_html">
<p>Timezone can bring a lot headaches when programming.<br>
Luckly our peers have written many great libraries that we can use.<br>
Here is a tutorial on how to deal with timezone in python and Django.</p>

</div>
</div>
</div>
<div class="cell border-box-sizing text_cell rendered"><div class="prompt input_prompt">
</div>
<div class="inner_cell">
<div class="text_cell_render border-box-sizing rendered_html">
<h2 id="pytz-package">pytz package<a class="anchor-link" href="#pytz-package">&#182;</a></h2><p>pytc is a timezone definition package, and it is very powerful dealing with tiemzones.</p>
<p>you can install it through <code>pip</code>:</p>

</div>
</div>
</div>
<div class="cell border-box-sizing code_cell rendered">
<div class="input">
<div class="prompt input_prompt">In&nbsp;[1]:</div>
<div class="inner_cell">
    <div class="input_area">
<div class=" highlight hl-ipython3"><pre><span></span><span class="n">pip</span> <span class="n">install</span> <span class="n">pytz</span> <span class="c1"># in python environment</span>
</pre></div>

</div>
</div>
</div>

<div class="output_wrapper">
<div class="output">


<div class="output_area">

<div class="prompt"></div>


<div class="output_subarea output_stream output_stdout output_text">
<pre>
The following command must be run outside of the IPython shell:

    $ pip install pytz # in python environment

The Python package manager (pip) can only be used from outside of IPython.
Please reissue the `pip` command in a separate terminal or command prompt.

See the Python documentation for more informations on how to install packages:

    https://docs.python.org/3/installing/
</pre>
</div>
</div>

</div>
</div>

</div>
<div class="cell border-box-sizing text_cell rendered"><div class="prompt input_prompt">
</div>
<div class="inner_cell">
<div class="text_cell_render border-box-sizing rendered_html">
<h2 id="Add-time-zone-information-to-a-naive-datetime-object">Add time zone information to a naive datetime object<a class="anchor-link" href="#Add-time-zone-information-to-a-naive-datetime-object">&#182;</a></h2>
</div>
</div>
</div>
<div class="cell border-box-sizing code_cell rendered">
<div class="input">
<div class="prompt input_prompt">In&nbsp;[2]:</div>
<div class="inner_cell">
    <div class="input_area">
<div class=" highlight hl-ipython3"><pre><span></span><span class="kn">from</span> <span class="nn">datetime</span> <span class="k">import</span> <span class="n">datetime</span>
<span class="kn">from</span> <span class="nn">pytz</span> <span class="k">import</span> <span class="n">timezone</span>

<span class="n">date_str</span> <span class="o">=</span> <span class="s2">&quot;2009-05-05 22:28:15&quot;</span>
<span class="n">datetime_obj</span> <span class="o">=</span> <span class="n">datetime</span><span class="o">.</span><span class="n">strptime</span><span class="p">(</span><span class="n">date_str</span><span class="p">,</span> <span class="s2">&quot;%Y-%m-</span><span class="si">%d</span><span class="s2"> %H:%M:%S&quot;</span><span class="p">)</span>
<span class="n">datetime_obj_utc</span> <span class="o">=</span> <span class="n">datetime_obj</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">tzinfo</span><span class="o">=</span><span class="n">timezone</span><span class="p">(</span><span class="s1">&#39;UTC&#39;</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="n">datetime_obj_utc</span><span class="o">.</span><span class="n">strftime</span><span class="p">(</span><span class="s2">&quot;%Y-%m-</span><span class="si">%d</span><span class="s2"> %H:%M:%S %Z%z&quot;</span><span class="p">))</span>
</pre></div>

</div>
</div>
</div>

<div class="output_wrapper">
<div class="output">


<div class="output_area">

<div class="prompt"></div>


<div class="output_subarea output_stream output_stdout output_text">
<pre>2009-05-05 22:28:15 UTC+0000
</pre>
</div>
</div>

</div>
</div>

</div>
<div class="cell border-box-sizing text_cell rendered"><div class="prompt input_prompt">
</div>
<div class="inner_cell">
<div class="text_cell_render border-box-sizing rendered_html">
<h2 id="Add-non-UTC-time-zone-information-to-a-naive-datetime-object">Add non-UTC time zone information to a naive datetime object<a class="anchor-link" href="#Add-non-UTC-time-zone-information-to-a-naive-datetime-object">&#182;</a></h2>
</div>
</div>
</div>
<div class="cell border-box-sizing text_cell rendered"><div class="prompt input_prompt">
</div>
<div class="inner_cell">
<div class="text_cell_render border-box-sizing rendered_html">
<p><strong>ATTENTION:</strong> <code>datetime.replace()</code> does not handle daylight savings time correctly.<br>
The <strong>correct</strong> way is to use <code>timezone.localize()</code></p>

</div>
</div>
</div>
<div class="cell border-box-sizing code_cell rendered">
<div class="input">
<div class="prompt input_prompt">In&nbsp;[3]:</div>
<div class="inner_cell">
    <div class="input_area">
<div class=" highlight hl-ipython3"><pre><span></span><span class="kn">from</span> <span class="nn">datetime</span> <span class="k">import</span> <span class="n">datetime</span>
<span class="kn">from</span> <span class="nn">pytz</span> <span class="k">import</span> <span class="n">timezone</span>

<span class="n">date_str</span> <span class="o">=</span> <span class="s2">&quot;2014-05-28 22:28:15&quot;</span>
<span class="n">datetime_obj_naive</span> <span class="o">=</span> <span class="n">datetime</span><span class="o">.</span><span class="n">strptime</span><span class="p">(</span><span class="n">date_str</span><span class="p">,</span> <span class="s2">&quot;%Y-%m-</span><span class="si">%d</span><span class="s2"> %H:%M:%S&quot;</span><span class="p">)</span>

<span class="c1"># Wrong way!</span>
<span class="n">datetime_obj_pacific</span> <span class="o">=</span> <span class="n">datetime_obj_naive</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">tzinfo</span><span class="o">=</span><span class="n">timezone</span><span class="p">(</span><span class="s1">&#39;US/Pacific&#39;</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="n">datetime_obj_pacific</span><span class="o">.</span><span class="n">strftime</span><span class="p">(</span><span class="s2">&quot;%Y-%m-</span><span class="si">%d</span><span class="s2"> %H:%M:%S %Z%z&quot;</span><span class="p">))</span>

<span class="c1"># Right way!</span>
<span class="n">datetime_obj_pacific</span> <span class="o">=</span> <span class="n">timezone</span><span class="p">(</span><span class="s1">&#39;US/Pacific&#39;</span><span class="p">)</span><span class="o">.</span><span class="n">localize</span><span class="p">(</span><span class="n">datetime_obj_naive</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="n">datetime_obj_pacific</span><span class="o">.</span><span class="n">strftime</span><span class="p">(</span><span class="s2">&quot;%Y-%m-</span><span class="si">%d</span><span class="s2"> %H:%M:%S %Z%z&quot;</span><span class="p">))</span>
</pre></div>

</div>
</div>
</div>

<div class="output_wrapper">
<div class="output">


<div class="output_area">

<div class="prompt"></div>


<div class="output_subarea output_stream output_stdout output_text">
<pre>2014-05-28 22:28:15 LMT-0753
2014-05-28 22:28:15 PDT-0700
</pre>
</div>
</div>

</div>
</div>

</div>
<div class="cell border-box-sizing text_cell rendered"><div class="prompt input_prompt">
</div>
<div class="inner_cell">
<div class="text_cell_render border-box-sizing rendered_html">
<h2 id="Convert-time-zones">Convert time zones<a class="anchor-link" href="#Convert-time-zones">&#182;</a></h2><p>Use <code>datetime.astimezone(tz)</code> to convert timezone</p>

</div>
</div>
</div>
<div class="cell border-box-sizing code_cell rendered">
<div class="input">
<div class="prompt input_prompt">In&nbsp;[4]:</div>
<div class="inner_cell">
    <div class="input_area">
<div class=" highlight hl-ipython3"><pre><span></span><span class="kn">from</span> <span class="nn">datetime</span> <span class="k">import</span> <span class="n">datetime</span>
<span class="kn">from</span> <span class="nn">pytz</span> <span class="k">import</span> <span class="n">timezone</span>

<span class="n">fmt</span> <span class="o">=</span> <span class="s2">&quot;%Y-%m-</span><span class="si">%d</span><span class="s2"> %H:%M:%S %Z%z&quot;</span>

<span class="c1"># Current time in UTC</span>
<span class="n">now_utc</span> <span class="o">=</span> <span class="n">datetime</span><span class="o">.</span><span class="n">now</span><span class="p">(</span><span class="n">timezone</span><span class="p">(</span><span class="s1">&#39;UTC&#39;</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="n">now_utc</span><span class="o">.</span><span class="n">strftime</span><span class="p">(</span><span class="n">fmt</span><span class="p">))</span>

<span class="c1"># Convert to US/Pacific time zone</span>
<span class="n">now_pacific</span> <span class="o">=</span> <span class="n">now_utc</span><span class="o">.</span><span class="n">astimezone</span><span class="p">(</span><span class="n">timezone</span><span class="p">(</span><span class="s1">&#39;US/Pacific&#39;</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="n">now_pacific</span><span class="o">.</span><span class="n">strftime</span><span class="p">(</span><span class="n">fmt</span><span class="p">))</span>

<span class="c1"># Convert to Europe/Berlin time zone</span>
<span class="n">now_berlin</span> <span class="o">=</span> <span class="n">now_pacific</span><span class="o">.</span><span class="n">astimezone</span><span class="p">(</span><span class="n">timezone</span><span class="p">(</span><span class="s1">&#39;Europe/Berlin&#39;</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="n">now_berlin</span><span class="o">.</span><span class="n">strftime</span><span class="p">(</span><span class="n">fmt</span><span class="p">))</span>
</pre></div>

</div>
</div>
</div>

<div class="output_wrapper">
<div class="output">


<div class="output_area">

<div class="prompt"></div>


<div class="output_subarea output_stream output_stdout output_text">
<pre>2018-11-12 06:02:09 UTC+0000
2018-11-11 22:02:09 PST-0800
2018-11-12 07:02:09 CET+0100
</pre>
</div>
</div>

</div>
</div>

</div>
<div class="cell border-box-sizing text_cell rendered"><div class="prompt input_prompt">
</div>
<div class="inner_cell">
<div class="text_cell_render border-box-sizing rendered_html">
<h2 id="List-timezones">List timezones<a class="anchor-link" href="#List-timezones">&#182;</a></h2><p>There are 593 time zones included in the current pytz version.</p>

</div>
</div>
</div>
<div class="cell border-box-sizing code_cell rendered">
<div class="input">
<div class="prompt input_prompt">In&nbsp;[5]:</div>
<div class="inner_cell">
    <div class="input_area">
<div class=" highlight hl-ipython3"><pre><span></span><span class="c1"># Check pytz version</span>
<span class="kn">import</span> <span class="nn">pytz</span>

<span class="nb">print</span><span class="p">(</span><span class="n">pytz</span><span class="o">.</span><span class="n">__version__</span><span class="p">)</span>
</pre></div>

</div>
</div>
</div>

<div class="output_wrapper">
<div class="output">


<div class="output_area">

<div class="prompt"></div>


<div class="output_subarea output_stream output_stdout output_text">
<pre>2017.2
</pre>
</div>
</div>

</div>
</div>

</div>
<div class="cell border-box-sizing code_cell rendered">
<div class="input">
<div class="prompt input_prompt">In&nbsp;[6]:</div>
<div class="inner_cell">
    <div class="input_area">
<div class=" highlight hl-ipython3"><pre><span></span><span class="c1"># Check how many timezonmes</span>
<span class="kn">from</span> <span class="nn">pytz</span> <span class="k">import</span> <span class="n">all_timezones</span>

<span class="nb">print</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">all_timezones</span><span class="p">))</span>
</pre></div>

</div>
</div>
</div>

<div class="output_wrapper">
<div class="output">


<div class="output_area">

<div class="prompt"></div>


<div class="output_subarea output_stream output_stdout output_text">
<pre>593
</pre>
</div>
</div>

</div>
</div>

</div>
<div class="cell border-box-sizing code_cell rendered">
<div class="input">
<div class="prompt input_prompt">In&nbsp;[7]:</div>
<div class="inner_cell">
    <div class="input_area">
<div class=" highlight hl-ipython3"><pre><span></span><span class="c1"># Print all the timezone in US</span>
<span class="k">for</span> <span class="n">zone</span> <span class="ow">in</span> <span class="n">all_timezones</span><span class="p">:</span>
    <span class="k">if</span> <span class="s1">&#39;US&#39;</span> <span class="ow">in</span> <span class="n">zone</span><span class="p">:</span>
        <span class="nb">print</span><span class="p">(</span><span class="n">zone</span><span class="p">)</span>
</pre></div>

</div>
</div>
</div>

<div class="output_wrapper">
<div class="output">


<div class="output_area">

<div class="prompt"></div>


<div class="output_subarea output_stream output_stdout output_text">
<pre>US/Alaska
US/Aleutian
US/Arizona
US/Central
US/East-Indiana
US/Eastern
US/Hawaii
US/Indiana-Starke
US/Michigan
US/Mountain
US/Pacific
US/Pacific-New
US/Samoa
</pre>
</div>
</div>

</div>
</div>

</div>
<div class="cell border-box-sizing text_cell rendered"><div class="prompt input_prompt">
</div>
<div class="inner_cell">
<div class="text_cell_render border-box-sizing rendered_html">
<p><strong>NOTE:</strong> all the above content is referenced from <a href="https://www.saltycrane.com/blog/2009/05/converting-time-zones-datetime-objects-python/">Converting time zones for datetime objects in Python - SaltyCrane Blog</a> with slight modification</p>

</div>
</div>
</div>
<div class="cell border-box-sizing text_cell rendered"><div class="prompt input_prompt">
</div>
<div class="inner_cell">
<div class="text_cell_render border-box-sizing rendered_html">
<h2 id="Deal-with-teimzone-format-in-windows-registry">Deal with teimzone format in windows registry<a class="anchor-link" href="#Deal-with-teimzone-format-in-windows-registry">&#182;</a></h2><ul>
<li>Some APIs/packages using timezone farmat as imported from <code>Windows Registry</code></li>
<li>I don't really have a good method to deal with it, except using a big timezone dictionary to map it</li>
<li>This is inspired by this post: <a href="https://stackoverflow.com/questions/16156597/how-can-i-convert-windows-timezones-to-timezones-pytz-understands#answer-16157049">python - How can I convert windows timezones to timezones pytz understands? - Stack Overflow</a></li>
</ul>

</div>
</div>
</div>
<div class="cell border-box-sizing code_cell rendered">
<div class="input">
<div class="prompt input_prompt">In&nbsp;[8]:</div>
<div class="inner_cell">
    <div class="input_area">
<div class=" highlight hl-ipython3"><pre><span></span><span class="c1"># A big dictionary mapping windows registry timezone format </span>
<span class="c1"># to the format readable by python</span>
<span class="n">TIMEZONES</span> <span class="o">=</span> <span class="p">{</span>
    <span class="s2">&quot;AUSCENTRALSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Australia/Darwin&quot;</span><span class="p">,</span>
    <span class="s2">&quot;AUSEASTERNSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Australia/Sydney&quot;</span><span class="p">,</span>
    <span class="s2">&quot;AFGHANISTANSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Kabul&quot;</span><span class="p">,</span>
    <span class="s2">&quot;ALASKANSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;America/Anchorage&quot;</span><span class="p">,</span>
    <span class="s2">&quot;ARABSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Riyadh&quot;</span><span class="p">,</span>
    <span class="s2">&quot;ARABIANSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Dubai&quot;</span><span class="p">,</span>
    <span class="s2">&quot;ARABICSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Baghdad&quot;</span><span class="p">,</span>
    <span class="s2">&quot;ARGENTINASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;America/Buenos_Aires&quot;</span><span class="p">,</span>
    <span class="s2">&quot;ATLANTICSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;America/Halifax&quot;</span><span class="p">,</span>
    <span class="s2">&quot;AZERBAIJANSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Baku&quot;</span><span class="p">,</span>
    <span class="s2">&quot;AZORESSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Atlantic/Azores&quot;</span><span class="p">,</span>
    <span class="s2">&quot;BAHIASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;America/Bahia&quot;</span><span class="p">,</span>
    <span class="s2">&quot;BANGLADESHSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Dhaka&quot;</span><span class="p">,</span>
    <span class="s2">&quot;BELARUSSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Europe/Minsk&quot;</span><span class="p">,</span>
    <span class="s2">&quot;CANADACENTRALSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;America/Regina&quot;</span><span class="p">,</span>
    <span class="s2">&quot;CAPEVERDESTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Atlantic/Cape_Verde&quot;</span><span class="p">,</span>
    <span class="s2">&quot;CAUCASUSSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Yerevan&quot;</span><span class="p">,</span>
    <span class="s2">&quot;CENAUSTRALIASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Australia/Adelaide&quot;</span><span class="p">,</span>
    <span class="s2">&quot;CENTRALAMERICASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;America/Guatemala&quot;</span><span class="p">,</span>
    <span class="s2">&quot;CENTRALASIASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Almaty&quot;</span><span class="p">,</span>
    <span class="s2">&quot;CENTRALBRAZILIANSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;America/Cuiaba&quot;</span><span class="p">,</span>
    <span class="s2">&quot;CENTRALEUROPESTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Europe/Budapest&quot;</span><span class="p">,</span>
    <span class="s2">&quot;CENTRALEUROPEANSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Europe/Warsaw&quot;</span><span class="p">,</span>
    <span class="s2">&quot;CENTRALPACIFICSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Pacific/Guadalcanal&quot;</span><span class="p">,</span>
    <span class="s2">&quot;CENTRALSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;America/Chicago&quot;</span><span class="p">,</span>
    <span class="s2">&quot;CENTRALSTANDARDTIME(MEXICO)&quot;</span><span class="p">:</span> <span class="s2">&quot;America/Mexico_City&quot;</span><span class="p">,</span>
    <span class="s2">&quot;CHINASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Shanghai&quot;</span><span class="p">,</span>
    <span class="s2">&quot;DATELINESTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Etc/GMT+12&quot;</span><span class="p">,</span>
    <span class="s2">&quot;EAFRICASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Africa/Nairobi&quot;</span><span class="p">,</span>
    <span class="s2">&quot;EAUSTRALIASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Australia/Brisbane&quot;</span><span class="p">,</span>
    <span class="s2">&quot;EEUROPESTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Europe/Chisinau&quot;</span><span class="p">,</span>
    <span class="s2">&quot;ESOUTHAMERICASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;America/Sao_Paulo&quot;</span><span class="p">,</span>
    <span class="s2">&quot;EASTERNSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;America/New_York&quot;</span><span class="p">,</span>
    <span class="s2">&quot;EGYPTSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Africa/Cairo&quot;</span><span class="p">,</span>
    <span class="s2">&quot;EKATERINBURGSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Yekaterinburg&quot;</span><span class="p">,</span>
    <span class="s2">&quot;FLESTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Europe/Kiev&quot;</span><span class="p">,</span>
    <span class="s2">&quot;FIJISTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Pacific/Fiji&quot;</span><span class="p">,</span>
    <span class="s2">&quot;GMTSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Europe/London&quot;</span><span class="p">,</span>
    <span class="s2">&quot;GTBSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Europe/Bucharest&quot;</span><span class="p">,</span>
    <span class="s2">&quot;GEORGIANSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Tbilisi&quot;</span><span class="p">,</span>
    <span class="s2">&quot;GREENLANDSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;America/Godthab&quot;</span><span class="p">,</span>
    <span class="s2">&quot;GREENWICHSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Atlantic/Reykjavik&quot;</span><span class="p">,</span>
    <span class="s2">&quot;HAWAIIANSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Pacific/Honolulu&quot;</span><span class="p">,</span>
    <span class="s2">&quot;INDIASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Calcutta&quot;</span><span class="p">,</span>
    <span class="s2">&quot;IRANSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Tehran&quot;</span><span class="p">,</span>
    <span class="s2">&quot;ISRAELSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Jerusalem&quot;</span><span class="p">,</span>
    <span class="s2">&quot;JORDANSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Amman&quot;</span><span class="p">,</span>
    <span class="s2">&quot;KALININGRADSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Europe/Kaliningrad&quot;</span><span class="p">,</span>
    <span class="s2">&quot;KAMCHATKASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Pacific/Fiji&quot;</span><span class="p">,</span>  <span class="c1"># this timezone is UTC+12</span>
    <span class="s2">&quot;KOREASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Seoul&quot;</span><span class="p">,</span>
    <span class="s2">&quot;LIBYASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Africa/Tripoli&quot;</span><span class="p">,</span>
    <span class="s2">&quot;LINEISLANDSSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Pacific/Kiritimati&quot;</span><span class="p">,</span>
    <span class="s2">&quot;MAGADANSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Magadan&quot;</span><span class="p">,</span>
    <span class="s2">&quot;MAURITIUSSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Indian/Mauritius&quot;</span><span class="p">,</span>
    <span class="s2">&quot;MIDATLANTICSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Etc/GMT+2&quot;</span><span class="p">,</span>  <span class="c1"># this timezone is UTC-2</span>
    <span class="s2">&quot;MIDDLEEASTSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Beirut&quot;</span><span class="p">,</span>
    <span class="s2">&quot;MONTEVIDEOSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;America/Montevideo&quot;</span><span class="p">,</span>
    <span class="s2">&quot;MOROCCOSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Africa/Casablanca&quot;</span><span class="p">,</span>
    <span class="s2">&quot;MOUNTAINSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;America/Denver&quot;</span><span class="p">,</span>
    <span class="s2">&quot;MOUNTAINSTANDARDTIME(MEXICO)&quot;</span><span class="p">:</span> <span class="s2">&quot;America/Chihuahua&quot;</span><span class="p">,</span>
    <span class="s2">&quot;MYANMARSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Rangoon&quot;</span><span class="p">,</span>
    <span class="s2">&quot;NCENTRALASIASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Novosibirsk&quot;</span><span class="p">,</span>
    <span class="s2">&quot;NAMIBIASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Africa/Windhoek&quot;</span><span class="p">,</span>
    <span class="s2">&quot;NEPALSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Katmandu&quot;</span><span class="p">,</span>
    <span class="s2">&quot;NEWZEALANDSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Pacific/Auckland&quot;</span><span class="p">,</span>
    <span class="s2">&quot;NEWFOUNDLANDSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;America/St_Johns&quot;</span><span class="p">,</span>
    <span class="s2">&quot;NORTHASIAEASTSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Irkutsk&quot;</span><span class="p">,</span>
    <span class="s2">&quot;NORTHASIASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Krasnoyarsk&quot;</span><span class="p">,</span>
    <span class="s2">&quot;PACIFICSASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;America/Santiago&quot;</span><span class="p">,</span>
    <span class="s2">&quot;PACIFICSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;America/Los_Angeles&quot;</span><span class="p">,</span>
    <span class="s2">&quot;PACIFICSTANDARDTIME(MEXICO)&quot;</span><span class="p">:</span> <span class="s2">&quot;America/Tijuana&quot;</span><span class="p">,</span>
    <span class="s2">&quot;PAKISTANSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Karachi&quot;</span><span class="p">,</span>
    <span class="s2">&quot;PARAGUAYSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;America/Asuncion&quot;</span><span class="p">,</span>
    <span class="s2">&quot;ROMANCESTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Europe/Paris&quot;</span><span class="p">,</span>
    <span class="s2">&quot;RUSSIATIMEZONE10&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Srednekolymsk&quot;</span><span class="p">,</span>
    <span class="s2">&quot;RUSSIATIMEZONE11&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Kamchatka&quot;</span><span class="p">,</span>
    <span class="s2">&quot;RUSSIATIMEZONE3&quot;</span><span class="p">:</span> <span class="s2">&quot;Europe/Samara&quot;</span><span class="p">,</span>
    <span class="s2">&quot;RUSSIANSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Europe/Moscow&quot;</span><span class="p">,</span>
    <span class="s2">&quot;SAEASTERNSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;America/Cayenne&quot;</span><span class="p">,</span>
    <span class="s2">&quot;SAPACIFICSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;America/Bogota&quot;</span><span class="p">,</span>
    <span class="s2">&quot;SAWESTERNSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;America/La_Paz&quot;</span><span class="p">,</span>
    <span class="s2">&quot;SEASIASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Bangkok&quot;</span><span class="p">,</span>
    <span class="s2">&quot;SAMOASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Pacific/Apia&quot;</span><span class="p">,</span>
    <span class="s2">&quot;SINGAPORESTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Singapore&quot;</span><span class="p">,</span>
    <span class="s2">&quot;SOUTHAFRICASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Africa/Johannesburg&quot;</span><span class="p">,</span>
    <span class="s2">&quot;SRILANKASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Colombo&quot;</span><span class="p">,</span>
    <span class="s2">&quot;SYRIASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Damascus&quot;</span><span class="p">,</span>
    <span class="s2">&quot;TAIPEISTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Taipei&quot;</span><span class="p">,</span>
    <span class="s2">&quot;TASMANIASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Australia/Hobart&quot;</span><span class="p">,</span>
    <span class="s2">&quot;TOKYOSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Tokyo&quot;</span><span class="p">,</span>
    <span class="s2">&quot;TONGASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Pacific/Tongatapu&quot;</span><span class="p">,</span>
    <span class="s2">&quot;TURKEYSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Europe/Istanbul&quot;</span><span class="p">,</span>
    <span class="s2">&quot;USEASTERNSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;America/Indianapolis&quot;</span><span class="p">,</span>
    <span class="s2">&quot;USMOUNTAINSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;America/Phoenix&quot;</span><span class="p">,</span>
    <span class="s2">&quot;UTC&quot;</span><span class="p">:</span> <span class="s2">&quot;Etc/GMT&quot;</span><span class="p">,</span>
    <span class="s2">&quot;UTC+12&quot;</span><span class="p">:</span> <span class="s2">&quot;Etc/GMT-12&quot;</span><span class="p">,</span>
    <span class="s2">&quot;UTC02&quot;</span><span class="p">:</span> <span class="s2">&quot;Etc/GMT+2&quot;</span><span class="p">,</span>
    <span class="s2">&quot;UTC11&quot;</span><span class="p">:</span> <span class="s2">&quot;Etc/GMT+11&quot;</span><span class="p">,</span>
    <span class="s2">&quot;ULAANBAATARSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Ulaanbaatar&quot;</span><span class="p">,</span>
    <span class="s2">&quot;VENEZUELASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;America/Caracas&quot;</span><span class="p">,</span>
    <span class="s2">&quot;VLADIVOSTOKSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Vladivostok&quot;</span><span class="p">,</span>
    <span class="s2">&quot;WAUSTRALIASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Australia/Perth&quot;</span><span class="p">,</span>
    <span class="s2">&quot;WCENTRALAFRICASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Africa/Lagos&quot;</span><span class="p">,</span>
    <span class="s2">&quot;WEUROPESTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Europe/Berlin&quot;</span><span class="p">,</span>
    <span class="s2">&quot;WESTASIASTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Tashkent&quot;</span><span class="p">,</span>
    <span class="s2">&quot;WESTPACIFICSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Pacific/Port_Moresby&quot;</span><span class="p">,</span>
    <span class="s2">&quot;YAKUTSKSTANDARDTIME&quot;</span><span class="p">:</span> <span class="s2">&quot;Asia/Yakutsk&quot;</span><span class="p">,</span>
<span class="p">}</span>
</pre></div>

</div>
</div>
</div>

</div>
<div class="cell border-box-sizing code_cell rendered">
<div class="input">
<div class="prompt input_prompt">In&nbsp;[9]:</div>
<div class="inner_cell">
    <div class="input_area">
<div class=" highlight hl-ipython3"><pre><span></span><span class="kn">from</span> <span class="nn">datetime</span> <span class="k">import</span> <span class="n">timedelta</span>
<span class="kn">from</span> <span class="nn">datetime</span> <span class="k">import</span> <span class="n">timezone</span>

<span class="kn">from</span> <span class="nn">pytz</span> <span class="k">import</span> <span class="n">timezone</span> <span class="k">as</span> <span class="n">tz</span>
<span class="kn">from</span> <span class="nn">pytz</span> <span class="k">import</span> <span class="n">all_timezones_set</span>

<span class="n">raw_date</span> <span class="o">=</span> <span class="s2">&quot;2018-09-17+06:30&quot;</span> <span class="c1"># test timezone</span>

<span class="c1"># Parse the raw date string</span>
<span class="n">utc_offset</span> <span class="o">=</span> <span class="n">timedelta</span><span class="p">(</span>
    <span class="n">hours</span><span class="o">=</span><span class="nb">int</span><span class="p">(</span><span class="n">raw_date</span><span class="p">[</span><span class="o">-</span><span class="mi">5</span><span class="p">:</span><span class="o">-</span><span class="mi">3</span><span class="p">]),</span> <span class="n">minutes</span><span class="o">=</span><span class="nb">int</span><span class="p">(</span><span class="n">raw_date</span><span class="p">[</span><span class="o">-</span><span class="mi">2</span><span class="p">:])</span>
<span class="p">)</span>

<span class="c1"># Use the first timezone info returned</span>
<span class="n">_timezone_info</span> <span class="o">=</span> <span class="nb">next</span><span class="p">(</span>
    <span class="n">_tz</span><span class="o">.</span><span class="n">zone</span>
    <span class="k">for</span> <span class="n">_tz</span> <span class="ow">in</span> <span class="nb">map</span><span class="p">(</span><span class="n">tz</span><span class="p">,</span> <span class="n">all_timezones_set</span><span class="p">)</span>
    <span class="k">if</span> <span class="n">datetime</span><span class="o">.</span><span class="n">now</span><span class="p">()</span><span class="o">.</span><span class="n">astimezone</span><span class="p">(</span><span class="n">_tz</span><span class="p">)</span><span class="o">.</span><span class="n">utcoffset</span><span class="p">()</span> <span class="o">==</span> <span class="n">utc_offset</span>
<span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;Processed timezone is:&quot;</span><span class="p">,</span> <span class="n">_timezone_info</span><span class="p">)</span>

<span class="c1"># Get the correct timezone with raw date</span>
<span class="n">date_without_timezone</span> <span class="o">=</span> <span class="n">datetime</span><span class="o">.</span><span class="n">strptime</span><span class="p">(</span><span class="n">raw_date</span><span class="p">[:</span><span class="mi">10</span><span class="p">],</span> <span class="s2">&quot;%Y-%m-</span><span class="si">%d</span><span class="s2">&quot;</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="n">date_without_timezone</span><span class="p">)</span>

<span class="n">date_with_timezone</span> <span class="o">=</span> <span class="n">tz</span><span class="p">(</span><span class="n">_timezone_info</span><span class="p">)</span><span class="o">.</span><span class="n">localize</span><span class="p">(</span><span class="n">date_without_timezone</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="n">date_with_timezone</span><span class="p">,</span> <span class="nb">type</span><span class="p">(</span><span class="n">date_with_timezone</span><span class="p">))</span>
</pre></div>

</div>
</div>
</div>

<div class="output_wrapper">
<div class="output">


<div class="output_area">

<div class="prompt"></div>


<div class="output_subarea output_stream output_stdout output_text">
<pre>Processed timezone is: Indian/Cocos
2018-09-17 00:00:00
2018-09-17 00:00:00+06:30 &lt;class &#39;datetime.datetime&#39;&gt;
</pre>
</div>
</div>

</div>
</div>

</div>
<div class="cell border-box-sizing text_cell rendered"><div class="prompt input_prompt">
</div>
<div class="inner_cell">
<div class="text_cell_render border-box-sizing rendered_html">
<p>Lets look closer at these two dates</p>

</div>
</div>
</div>
<div class="cell border-box-sizing code_cell rendered">
<div class="input">
<div class="prompt input_prompt">In&nbsp;[10]:</div>
<div class="inner_cell">
    <div class="input_area">
<div class=" highlight hl-ipython3"><pre><span></span><span class="n">date_without_timezone</span>
</pre></div>

</div>
</div>
</div>

<div class="output_wrapper">
<div class="output">


<div class="output_area">

<div class="prompt output_prompt">Out[10]:</div>




<div class="output_text output_subarea output_execute_result">
<pre>datetime.datetime(2018, 9, 17, 0, 0)</pre>
</div>

</div>

</div>
</div>

</div>
<div class="cell border-box-sizing code_cell rendered">
<div class="input">
<div class="prompt input_prompt">In&nbsp;[11]:</div>
<div class="inner_cell">
    <div class="input_area">
<div class=" highlight hl-ipython3"><pre><span></span><span class="n">date_with_timezone</span>
</pre></div>

</div>
</div>
</div>

<div class="output_wrapper">
<div class="output">


<div class="output_area">

<div class="prompt output_prompt">Out[11]:</div>




<div class="output_text output_subarea output_execute_result">
<pre>datetime.datetime(2018, 9, 17, 0, 0, tzinfo=&lt;DstTzInfo &#39;Indian/Cocos&#39; +0630+6:30:00 STD&gt;)</pre>
</div>

</div>

</div>
</div>

</div>
 


<script type="text/javascript">if (!document.getElementById('mathjaxscript_pelican_#%@#$@#')) {
    var mathjaxscript = document.createElement('script');
    mathjaxscript.id = 'mathjaxscript_pelican_#%@#$@#';
    mathjaxscript.type = 'text/javascript';
    mathjaxscript.src = '//cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config=TeX-AMS-MML_HTMLorMML';
    mathjaxscript[(window.opera ? "innerHTML" : "text")] =
        "MathJax.Hub.Config({" +
        "    config: ['MMLorHTML.js']," +
        "    TeX: { extensions: ['AMSmath.js','AMSsymbols.js','noErrors.js','noUndefined.js'], equationNumbers: { autoNumber: 'AMS' } }," +
        "    jax: ['input/TeX','input/MathML','output/HTML-CSS']," +
        "    extensions: ['tex2jax.js','mml2jax.js','MathMenu.js','MathZoom.js']," +
        "    displayAlign: 'center'," +
        "    displayIndent: '0em'," +
        "    showMathMenu: true," +
        "    tex2jax: { " +
        "        inlineMath: [ ['$','$'] ], " +
        "        displayMath: [ ['$$','$$'] ]," +
        "        processEscapes: true," +
        "        preview: 'TeX'," +
        "    }, " +
        "    'HTML-CSS': { " +
        " linebreaks: { automatic: true, width: '95% container' }, " +
        "        styles: { '.MathJax_Display, .MathJax .mo, .MathJax .mi, .MathJax .mn': {color: 'black ! important'} }" +
        "    } " +
        "}); ";
    (document.body || document.getElementsByTagName('head')[0]).appendChild(mathjaxscript);
}
</script>

    </div>

    <footer>
        <div class="tags">
            <a href="/tag/python.html">python</a>
            <a href="/tag/timezone.html">timezone</a>
        </div>
        <div class="pure-g post-footer">
            <div class="pure-g">
                <div class="pure-g poster-info">
                    <div class="pure-u">
                        <a href="/author/carson-zhang.html"><img src="../theme/images/authors/Logo.png" alt=""></a>
                    </div>
                    <div class="pure-u">
                        <h3 class="author-name"><a href="/author/carson-zhang.html">Carson Zhang</a></h3>
                        <p class="author-description">
                          
            I'm a senior software developer, passionated with artificial intellgence and
            web development.
        
                        </p>
                    </div>
                </div>
            </div>


            <!--
            -->

        </div>


    </footer>


</div>


  <footer class="index-footer">
    <div class="footer-wide">
      <p><a href="">Carson's Tech Hut</a>&copy; Carson Zhang 2020</p>
    </div>
    <div class="footer-narrow">
      <p><a href="">Carson's Tech Hut</a><br>
      &copy; Carson Zhang 2020</p>
    </div>
  </footer>


  <link rel="stylesheet" href="../theme/css/pure-min.css" />
  <link rel="stylesheet" href="../theme/css/grids-responsive-min.css" />
  <link rel="stylesheet" href="../theme/fontawesome-free-5.13.0-web/css/all.min.css" />
  <link rel="stylesheet" href="/theme/css/main.css" />
</body>


</html>