Useful Countdown Timer is a simple countdown timer that pop up a message box with user defined message when time is up.

Useful Countdown Timer Features:
1. Countdown timer
2. Pop up user defined message when time is up
3. Automatically calculate effective time from input, such as 80 seconds equal to 1 minute and 20 seconds

The license of this software is Free, you can free download and free use this digital clock & timer software.