Add or subtract hours, minutes, and seconds to get an exact running total. Useful for stacking multiple time blocks — meeting lengths, task durations, or trip legs — into one final figure.
Also covers: add time calculator, adding time calculator, time calculator hours, time calculator minutes, free time calculator
A simple, accurate desk clock for the times a screen isn't handy.
Enter each time block in hours, minutes, and seconds, choose Add, and the calculator carries over automatically — 75 minutes becomes 1 hour 15 minutes.
Yes — switch the operation to Subtract to find out how much time is left after removing a block, useful for tracking remaining budget on a task.
Yes, all three units roll over correctly (60 seconds to a minute, 60 minutes to an hour) so totals are always exact.