All the timers I tested were too complex for my taste. I decided to write one that was dead simple, so you could run it, type in a time and hit enter. The aim of SnapTimer is to get out of the way and help you be productive.
XNote Stopwatch is a versatile and flexible multifunctional digital stopwatch / countdown timer / clock software for PC. Helpful for timekeepers at sport competitions, time tracking of work, or even as a metronome.
A Java countdown timer and stopwatch. Features a fullscreen and a resizable window mode. All actions are available on the popup menu or as keyboard shortcuts.
Supports sound clip types of AIFF, AU, WAV and MIDI (uses the Java Sound engine).
Official website of JR Productions software and Timer Utility for OS X.
Timer Utility has been discontinued: http://www.macupdate.com/app/mac/30402/timer-utility.Discontinued
MacUpdate reports discontinued app. Homepage not available. Not available in iTunes store.
MenuTimer is a timer that you can use from your menu bar. It can be used as a stopwatch or a countdown timer. MenuTimer has support for days, hours, minutes, seconds, and milliseconds. Also, you can customize the alarm message.Discontinued
The company no longer exists but the app works good. Last version, 1.1.2, released on October 2003, is still downloadable from Wayback Machine.