More about Free Countdown Timer
Test Free Countdown Timer v4.0.1; you will need 2.87 MB of free space on the hard drive. This program is distributed by Comfort Software Group completely free of charge. The software refers to Productivity, Timekeeping. People choose 4.0 and 3.1 versions that can be launched on Windows 7/8.1/10. The most popular installers for this tool are FreeCountdownTimer.exe and Free Countdown Timer.exe. The antivirus check of the download link proved it to be safe.

Amazed that you think more information is required other than the application title to know "what it does". I googled the exact term, found this app, downloaded & it does exactly what it says
You should tell people what it does if you want people to download it.