I just tried comparing the different date & time selection plugins that are available for Rails and because the wiki page at rubyonrails.org is dated and I cannot edit it, I decided to write this brief blog post to save you the 20 min it took me to locate the currently available plugins and their demos:

• CalendarDateSelect plugin (20k JS): demo – has different colours, small, time selection
• Unobtrusive JavaScript date-picker plugin (80k JS): demo – keyboard control, flexible date selection, i18n
• Datetime Toolbooks engine (85k JS): demo – uses engines plugin, not very pretty, nice built-in drop-down menus, introduces date grammar
• DHTML Calendar plugin (76k JS): demo – flexible parameters to make it popup or selectable

So now you can compare and pick the one that suits you best. Enjoy! 🙂

UPDATE: John just told me that there is a list of other plugins at the bottom of the CalendarDateSelect plugin page – doh!