Hourglass - Hourglass is the most advanced simple countdown timer for Windows.
wnr - Better than pomodoro, this timer app balances work and rest.
TIMEBOX - An advanced timer for professional meeting facilitators
XNote Stopwatch - Try the most feature-rich stopwatch and timer software on the net for free!
Online Alarm Kur - Free online alarm clock, set alarm easily on your computer using the internet alarm clock without downloading any software, wake up in time with the loud online alarm clock.
Timer and Stopwatch - Online Stopwatch, with start alerts, lap times and sounds. Save details of your timings in a text file.