Add multiple time durations together. Enter hours, minutes, and seconds for each period.
h
m
s
h
m
s
h
m
s
Total: 4h 30m 45s (4.5125 hours, 270.75 minutes, 16,245 seconds)
Note: Seconds and minutes are capped at 59. Excess is carried over to the next unit.
Time Sum
Add multiple time durations together. Useful for time tracking, project management, and timesheets .
How to Use This Calculator
- Enter times: Hours, minutes, seconds for each period.
- Add: Click “Add Times” or press Enter.
- Interpretation: Results show total time in different formats.