Ion.Calendar is a jQuery calendar and datepicker, based on powerful library to work with time Moment.js
Nice tutorial about How to Make a Digital Clock with jQuery and CSS3. Soon functionality for setting alarms and playing them back with HTML5 audio ll be add.
FlipClock.js is a jQuery plugin with CSS3 animations to add counter, timer and clock with smooth flip effect.
timeTo is an easy-to-use and customizable jQuery plugin for creating countdown timers or digital clocks with a lot of options and callback support.
Date picker and date range selector with scrollable months instead of paged.
jQuery plugin to show your Google Calendar events on your web-site.
Simple jQuery Date and time picker plugin. It supports localization, date formats has some options to customize. Also there is fade animation on changing months.
jqtimeline is an easy to use, customizable jQuery plugin to create a timeline for a set events.
jQuery Mobile Date Navigation plugin provides a navigation between date range, either by a defined range (week, month and year). Ideal for querying information accurately by AJAX calls.
Minical is a tiny datepicker plugin, with no dependencies other than its icon PNG and stylesheet (which has SASS variables for easy customization).
It has full keyboard support and also defaults to make the associated input read-only, so its value can only be changed by the date format specified in the plugin. It also works great in iOS, with just enough touch event handling to behave properly.
County is a free jQuery count down plugin build with powerful jQuery library and loaded with various customization options. It allows you to control the animation, color schemes and many other parameters.
Calendario is a jQuery calendar plugin that aims to provide a suitable layout for both, small and big screens and keeping the calendar structure fluid when possible. On large screens we want to show a grid-based layout while on smaller screens, we want to simply stack the days of the month.