XNote Stopwatch - Try the most feature-rich stopwatch and timer software on the net for free!
Llama Life - Say goodbye to never-ending lists, and hello to daily bliss
Stopwatch - A Java countdown timer and stopwatch. Features a fullscreen and a resizable window mode.
Centered - Centered helps you get into a Flow State faster and stay there longer so you can do your best work.
TimeLeft - TimeLeft is a versatile desktop utility - it can be used as a countdown clock, reminder, clock...
wnr - Better than pomodoro, this timer app balances work and rest.