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.
pickadate.jsis a lightweight jQuery dateinput picker. pickadate.js works with
type="date" or regular text fields, supports various types of date formatting options, and is easy to theme.
The timepicker addon adds a timepicker to jQuery UI Datepicker, thus the datepicker and slider components (jQueryUI) are required for using any of these. In addition all datepicker options are still available through the timepicker addon.
Multi-day, multi-month animated datepicker jQuery plugin that weighs in at 14KB with the uncompressed development version.