Time Calculator — Add or Subtract Hours, Minutes, Seconds
The Time Calculator adds or subtracts hours, minutes, and seconds from a given duration. Enter two time values and get the total — perfect for calculating elapsed time, total work hours, race splits, or any scenario where you need to do arithmetic with hours, minutes, and seconds.
Frequently Asked Questions
Divide the total seconds by 3600 to get hours. The remainder divided by 60 gives minutes; the final remainder is seconds. For example, 15,300 seconds = 4 hours, 15 minutes, 0 seconds.