Stopwatch (Tk) is described as 'Stopwatch is a stopwatch and timer program that uses the Tk toolkit. Ugly but works'. There are more than 10 alternatives to Stopwatch (Tk) for a variety of platforms, including Windows, Mac, Android, Android Tablet and PortableApps.com. The best alternative is Hourglass, which is both free and Open Source. Other great apps like Stopwatch (Tk) are WatchMe (Free), SnapTimer (Free, Open Source), XNote Stopwatch (Paid) and Thyme (Free, Open Source).
Hourglass is the most advanced simple countdown timer for Windows. Just enter a time in just about any format, and hit Enter. Pause and resume Start, stop, pause and resume your timers. Finally an app that can do everything your kitchen timer can.
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.
Thyme is a timer for OS X. It's as simple as that. Time Your Tasks Use Thyme to control how much time you spend on your tasks. Keep a Record Thyme remembers the time you've spent when using it, so you don't have to.
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)
Timer and stopwatch may be needed in an unexpected moment, but with this application you will never be alone with the problem. Features: ? 2 in 1. Timer and stopwatch. ? The possibility of changing themes and notifications.