diff --git a/src/definitions/modules/calendar.js b/src/definitions/modules/calendar.js
index ca24cf16d5..b6ebfa924c 100644
--- a/src/definitions/modules/calendar.js
+++ b/src/definitions/modules/calendar.js
@@ -216,6 +216,7 @@ $.fn.calendar = function(parameters) {
             var pages = isDay ? multiMonth : 1;
 
             var container = $container;
+            var tooltipPosition = container.hasClass("left") ? "right center" : "left center";
             container.empty();
             if (pages > 1) {
               pageGrid = $('<div/>').addClass(className.grid).appendTo(container);
@@ -315,7 +316,14 @@ $.fn.calendar = function(parameters) {
                   cell.text(cellText);
                   cell.data(metadata.date, cellDate);
                   var adjacent = isDay && cellDate.getMonth() !== ((month + 12) % 12);
-                  var disabled = adjacent || !module.helper.isDateInRange(cellDate, mode) || settings.isDisabled(cellDate, mode) || (mode === 'day' && settings.disabledDaysOfWeek.includes(cellDate.getDay()));
+                  var disabled = adjacent || !module.helper.isDateInRange(cellDate, mode) || settings.isDisabled(cellDate, mode) || module.helper.isDisabled(cellDate, mode);
+                  if (disabled) {
+                    var disabledReason = module.helper.disabledReason(cellDate, mode);
+                    if (disabledReason !== null) {
+                      cell.attr("data-tooltip", disabledReason[metadata.message]);
+                      cell.attr("data-position", tooltipPosition);
+                    }
+                  }
                   var active = module.helper.dateEqual(cellDate, date, mode);
                   var isToday = module.helper.dateEqual(cellDate, today, mode);
                   cell.toggleClass(className.adjacentCell, adjacent);
@@ -378,7 +386,7 @@ $.fn.calendar = function(parameters) {
               var inRange = !rangeDate ? false :
                 ((!!startDate && module.helper.isDateInRange(cellDate, mode, startDate, rangeDate)) ||
                 (!!endDate && module.helper.isDateInRange(cellDate, mode, rangeDate, endDate)));
-              cell.toggleClass(className.focusCell, focused && (!isTouch || isTouchDown) && !adjacent);
+              cell.toggleClass(className.focusCell, focused && (!isTouch || isTouchDown) && !adjacent && !disabled);
               cell.toggleClass(className.rangeCell, inRange && !active && !disabled);
             });
           }
@@ -446,6 +454,9 @@ $.fn.calendar = function(parameters) {
             event.stopPropagation();
             isTouchDown = false;
             var target = $(event.target);
+            if (target.hasClass("disabled")) {
+              return;
+            }
             var parent = target.parent();
             if (parent.data(metadata.date) || parent.data(metadata.focusDate) || parent.data(metadata.mode)) {
               //clicked on a child element, switch to parent (used when clicking directly on prev/next <i> icon element)
@@ -495,7 +506,7 @@ $.fn.calendar = function(parameters) {
                 //enter
                 var mode = module.get.mode();
                 var date = module.get.focusDate();
-                if (date && !settings.isDisabled(date, mode) && !(mode === 'day' && settings.disabledDaysOfWeek.includes(date.getDay())) ) {
+                if (date && !settings.isDisabled(date, mode) && !module.helper.isDisabled(date, mode)) {
                   module.selectDate(date);
                 }
                 //disable form submission:
@@ -789,6 +800,29 @@ $.fn.calendar = function(parameters) {
         },
 
         helper: {
+          isDisabled: function(date, mode) {
+            return mode === 'day' && ((settings.disabledDaysOfWeek.indexOf(date.getDay()) !== -1) || settings.disabledDates.some(function(d){
+              if (d instanceof Date) {
+                return module.helper.dateEqual(date, d, mode);
+              }
+              if (d !== null && typeof d === 'object') {
+                return module.helper.dateEqual(date, d[metadata.date], mode);
+              }
+            }));
+          },
+          disabledReason: function(date, mode) {
+            if (mode === 'day') {
+              for (var i = 0; i < settings.disabledDates.length; i++) {
+                var d = settings.disabledDates[i];
+                if (d !== null && typeof d === 'object' && module.helper.dateEqual(date, d[metadata.date], mode)) {
+                  var reason = {};
+                  reason[metadata.message] = d[metadata.message];
+                  return reason;
+                }
+              }
+            }
+            return null;
+          },
           sanitiseDate: function (date) {
             if (!date) {
               return undefined;
@@ -1073,6 +1107,7 @@ $.fn.calendar.settings = {
   endCalendar        : null,       // jquery object or selector for another calendar that represents the end date of a date range
   multiMonth         : 1,          // show multiple months when in 'day' mode
   showWeekNumbers    : null,       // show Number of Week at the very first column of a dayView
+  disabledDates      : [],         // specific day(s) which won't be selectable and contain additional information.
   disabledDaysOfWeek : [],         // day(s) which won't be selectable(s) (0 = Sunday)
   // popup options ('popup', 'on', 'hoverable', and show/hide callbacks are overridden)
   popupOptions: {
@@ -1433,7 +1468,8 @@ $.fn.calendar.settings = {
     minDate: 'minDate',
     maxDate: 'maxDate',
     mode: 'mode',
-    monthOffset: 'monthOffset'
+    monthOffset: 'monthOffset',
+    message: 'message'
   }
 };
 
diff --git a/src/definitions/modules/calendar.less b/src/definitions/modules/calendar.less
index fa0870fc50..91793c78e1 100644
--- a/src/definitions/modules/calendar.less
+++ b/src/definitions/modules/calendar.less
@@ -122,7 +122,8 @@
 }
 
 .ui.calendar .ui.table tr .disabled {
-  pointer-events: none;
+  pointer-events: auto;
+  cursor: default;
   color: @disabledTextColor;
 }