Create countdowns for anything you like with TMinus.

User-friendly manager for your countdowns, allowing you to add, remove, and modify them

Shows countdowns in a separate window so you can see them in the background

Notification when a countdown completes

Open saved countdowns as soon as you log in (optional)

TMinus is a Universal Windows Platform (UWP) app written in C#. It is completely free and open-source. The code is available on GitHub: