Chameleon CSS is WordPress plugin that let your WordPress site to automatically select CSS file upon your specific condition by Time, Date and Day of the Week.

Birthday : 12/09/2009 Status : Live v.1.1

Automatically show/hide your widget everyday with "Seven Days", a WordPress plugin that let you set widget to show / hide by day condition (Sun - Sat)

Birthday : 31/07/2011 Status : Live v.0.2.1