v1.0.0 🚀

v1.2.0

adds isBetween() method

v1.3.0

adds spacetime.whereIts() method
actually implement 😓 season by hemisphere

v1.3.1

adds spacetime.i18n() method
adds spacetime.nearest() method
support for "quarterHour" units - '4:15, 4:30, 4:45, 5:00' etc

v1.3.2

fix for inf-loop regression on DST-switch

v2.0.0

fix major southern-hemisphere issue
re-structure d.timezone() response
add .hemisphere() method
use proper short-day forms

v2.1.0

support unix/unicode time-formating basic-level
add .era() get/set method
found 6 or 7 wrong offsets

v3.0.1

fallback to UTC, instead of PST if no Intl is present
support passing-in offsets as ISO_8601 date-strings
add epoch-seconds warning msg
allow getting/setting new timezones

v3.1.0

dramatic speedup by optimizing walkTo method

v3.2.0

update zonefile to 2018 dst dates

v4.0.0

format(iso) now uses . for millisecond separator: 2016-11-04T09:00:59.122Z
adds .since() method to calculate a human-readable diff
support string/number input to .diff()
support ordinal inputs, like June 5th 2018
isAwake() method
alias for .plus() .minus() methods
.diff() without a unit does a couple units together
update zonefile to proper dst-flip time

v4.0.1

support .from() and .fromNow() methods

v4.1.0

fix 'February 30th' regression
remove denormalized .valid boolean on Spacetime class

v4.2.0

fix dayOfYear regression on 31st days
support space in ISO-186 format
update deps, use babel-env

v4.2.2

adds .extend() method for authoring plugins

v4.3.0

assume current year with input spacetime('July 5th')
do larger .diff() operations (gt 1yr) in fast-mode
support BC formatting of input and in s.format('year')
bug fix for iso-format hour-offsets (#58)

v4.4.0

big - swap interpretation of ISO date offsets -0500 → +5 offset #61

v4.5.0

update a few TZ offsets in mostly eastern-Russia
updates to 2019 Palestinian dst dates
fixes for missing immutable setter methods

v5.0.0 🚨 -breaking

🚨 all methods now immutable by default.🚨 -- existing code will now need to be s = s.add(1,'day') --- (instead of s.add(1,'day'))
move unix-formating out of .format() into .unixFmt()
support new {hour} oclock-style format templates
change default .format() response to yyyy-mm-dd
uppercase month and day names in .dayName()
support city-names, EST, PDT, etc as input
set default silent: true to avoid unwanted logging

5.1.0

titlecase short-forms of months, days in .format()
support implicit date in nov 2019
support tues March 5th 2018 inputs
pretty-dramatic speed optimizations (~50%)

5.2.0

next() and last() methods
support for century and decades
full-api tests and docs

5.3.0

added more iana timezones
fixed zero-padding in iso offsets
support half hour offsets in iso formats

5.4.0

support more time input formats
fixes offset input issue #103

5.6.0

support typescript types by Jacob Craig
use given timezone when given a spacetime object as an input
adds .every(unit, to) method
set UTC as default fallback timezone

5.7.0

avoid setting dates/months/hours past maximums and minimums
.hour(24) now changes date to tomorrow
faster diffs for large (decade-long) ranges
[big] fix awkward diff/since issues ('dec 25->jan 5' should be 0 years)

5.8.0

faster diff for large-number of months
more support for esoteric iso formats
add format('iso-month')
change fallback behaviour for set failure edge-cases

5.9.0

add support for changing start/end of the week
allow more flexible .i18n() inputs

v6.0.0

remove 'informal' timezone parsing (like .goto('south africa'))
remove 'display' info from .timezone() like 'EST' (move to spacetime-informal)
throw error on an invalid timezone #150
optimize .week() method

v6.1.0

support for +14 timezones.

v6.2.0

add config for dmy british date parsing
support 18-feb-2019 format

v6.2.1

fix typescript types

v6.3.0

add .decade()
add .century()
add .millenium()
add .json() method
remove dst for Brazil
fix .week() counting logic
change overflow error-amount for #166