Source: Battlestar Galactica (2004) TV series
This is the DRADIS countdown timer, which was used to tell when they could next make the jump to FTL
It was used both in the LCARS UI (in April Fools mode when you used an Auto-Destruct timer of 33 minutes) and the LCARS Wear apps
If a timer is running, this screen will show the time remaining instead of the current time.