RClock
A relative clock with support for away-time.
A relative clock starts countering from zero when you open it: it's relative from the moment you open it. Thus it's like a timer, except you can tell it you're leaving between say 13:00PM and 15:00PM so it won't increment during that period. You can even add this "away-time" afterwards! Very handy for breaks when counting working hours or as a productivity tool.