Add or subtract time from a starting point
Use this time calculator to add or subtract hours and minutes from a starting time. It helps you quickly determine the final time after adding or subtracting a duration.
Select a starting hour and minute, choose whether to add or subtract time, and enter the duration. The calculator instantly shows the resulting time.
Start: 09:30 → Add 2 hours 45 minutes → Result: 12:15
Start: 14:00 → Subtract 1 hour 30 minutes → Result: 12:30
The calculator converts time into minutes, adds or subtracts the duration, and converts the result back into hours and minutes.
Add the hours and minutes to the starting time.
Yes, switch to subtract mode and enter the duration.
Yes, it automatically adjusts when time goes past midnight.
Yes, it is useful for calculating shifts and schedules.