Tacere — Open Source Calendar App

Automatically silence the phone whenever there is an active event or meeting in the calendar. It includes support to: * Silence during events marked as "free" or "available". * Silence during all day events. * Automatically silence all calendar events or choose specific events to silence. * View upcoming events. * Change your settings for each event. * Schedule a different ringer state for each instance of a repeating event. * Automatically adjust media and alarm volumes if desired.