ATWidget is the AJAX-capable JavaScript GUI component. It is easy to add to a page and even easier to use! Unlike most date/time selection tools, nearly every field in an ATWidget control can be chosen with a single mouse click. And the wide variety of supported options make ATWidget a perfect fit where other interfaces won't work at all:
* time-only
* begin week with Monday (or any other day)
* range limits (before and/or after)
* custom date or time format
* 12-hour or 24-hour clock
* multiple languages (l10n/i18n)
* custom look & feel
* prehistoric dates