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Time Calculator: Add or Subtract Two Times

Written by:
PK

Below is a time calculator. Enter two durations of time using days, hours, minutes, and seconds, and add or subtract the two to combine time math.

Time Calculator: Time Arithmetic

Time Calculations: They Can Be Tricky

This tool is useful to find the cumulative amount of time two things took, or alternatively to find the difference in time between two timespans.

For example, you might add two times together to figure out your total duration for two events. Or perhaps, you want to see how long something will be if you've already experienced it for some time and can subtract.

Either way, this tool has you covered - just enter your own hours, minutes, seconds, and days and we'll do the time math.

Using the Time Calculator

In this tool, you add or subtract two time durations or your choice. In order:

  1. At the top of the tool, enter the days, hours, minutes, and seconds for the first timespan.
  2. In the middle of the tool, choose to add or subtract the two timespans.
  3. At the bottom of the tool, enter the days, hours, minutes, and seconds for the second timespan.

When you finish that, hit the Calculate Time button and we will return the combined timespan for both times.

Next, see the other calculators. Have fun!

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