Free Time Calculator 2026 to add and subtract hours, minutes and seconds. Calculate time duration, work hours and total time differences instantly.
Result
0h 0m 0s
Yes, the calculator can handle any time duration and will show results in days, hours, minutes, and seconds if needed.
Simply enter the start and end times, and the calculator will automatically handle calculations that cross midnight.
This calculator is for time arithmetic. For time zone conversions, you would need to add or subtract the hour difference between zones.
Yes, you can enter time in decimal format (e.g., 1.5 hours) or in hours:minutes:seconds format.