I will add screenshots and some more info here later.
It counts how long you have Overwatch open.
The program allows you to enter your estimated playtime at the start, and then starts counting whenever "Overwatch.exe" is open, and stops when it's not open. This program was for personal benefit, which is why I allowed you to enter the estimated playtime at the start, so you don't have to start at 0 if you've already played Overwatch for a while. Here are some screenshots (the UI is quite basic for now, I will update it as time goes on):
Current version: 1.2.0CLICK TO DOWNLOAD Archive of all versions.