Time Calculator
Add or subtract hours, minutes and seconds.
Add or subtract durations
Clock time plus or minus a duration
Units
| Unit | Equals |
|---|---|
| 1 hour | 60 minutes = 3,600 seconds |
| 1 day | 24 hours = 1,440 minutes = 86,400 seconds |
| 1 week | 168 hours = 10,080 minutes |
| 15 minutes | 0.25 hours |
| 45 minutes | 0.75 hours |
Time between two clock times: hours calculator.