Add or subtract hours, minutes, and seconds with this free time calculator. Use it to calculate total time, adjust a time duration, or convert the result into days, hours, minutes, and seconds.
Starting duration:
Enter the first time amount using days, hours, minutes, and seconds.
Second duration:
Enter the amount of time you want to add or subtract.
Operation:
Choose whether to add the second duration to the starting duration or subtract it from the starting duration.
Converted result:
The calculator converts everything to seconds first, then converts the final answer back into days, hours, minutes, and seconds.
A time calculator is useful when working with schedules, work hours, project durations, exercise times, travel time, video lengths, or any situation where hours, minutes, and seconds need to be added or subtracted.
This tool helps avoid mistakes when minutes or seconds go over 60 and need to be carried into the next unit.
Your result shows the final time duration in days, hours, minutes, and seconds. It also shows the same answer as total hours, total minutes, and total seconds.
A time calculator adds or subtracts time durations using days, hours, minutes, and seconds.
Yes. Choose subtract time from the operation menu, then enter the starting duration and the amount of time to subtract.
The calculator automatically converts larger second and minute values into the correct time format.
Yes. If you subtract a larger time duration from a smaller starting duration, the calculator will show a negative time result.