Add Time Calculator

Comprehensive calculator to add days, hours, minutes, and seconds together. Calculate total accumulative time.

Total Time
00:00:00

How to use the add time calculator

This is the most comprehensive time addition tool, allowing you to combine hours, minutes, and seconds simultaneously for every entry.

How to add time without the time addition calculator

Doing this manually can be tedious:

  • Sum up all the seconds.
  • If seconds > 59, divide by 60. Keep the remainder as seconds, add the quotient to minutes.
  • Sum up all the minutes (plus items from previous step).
  • If minutes > 59, divide by 60. Keep remainder as minutes, add quotient to hours.
  • Sum the hours.

Or, just use this calculator.

Add days, add minutes, add up time

Whether you have just minutes, or a complex mix of 1h 30m 15s + 45m 10s, simply enter them in the respective fields. If a field is blank, it counts as zero.

Let's add time together

Example:
Time 1: 1 hr 45 min 30 sec
Time 2: 2 hr 20 min 40 sec
Seconds: 30+40=70s -> 1 min 10s.
Minutes: 45+20+1=66m -> 1 hr 6m.
Hours: 1+2+1=4 hrs.
Total: 4 hrs 6 min 10 sec.