Finish, start, how long — and adding durations across the hour
Set a start time and a duration, then watch the finish time — counting on hours then minutes.
Start time
Duration hours
Duration minutes
Start time
6:45
Count on
1 h 30 min
Finish time
8:15
+1 h: 6:45 → 7:45
+30 min: 7:45 → 8:15