jQuery UI Datepicker

Displays a calendar from an input or inline for selecting dates.

jQuery Date and Time picker

jQuery plugin for date, time, or datetime manipulation in form

Mobiscroll Date & Time Scroller

Renders a scrollable Date, Time or Date & Time Picker for easy date entry on touch devices. It comes with theming capability, optional jQuery Mobile integration and multiple display modes: Inline, Modal, Bubble, Docked Top & Bottom.

PickMeUp

Really simple, powerful and customizable datepicker

Datepair.js

A plugin for intelligently selecting date and time ranges inspired by Google Calendar.

jquery-simple-datetimepicker

Date and time picker, it’s simple & clean. (jQuery plugin)

jQuery Continuous Calendar

Date picker and range selector with scrollable months instead of paged

Zebra_Datepicker

A super-lightweight, highly configurable, cross-browser date picker jQuery plugin