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Time and dates

Online time calculator

Add or subtract hours, minutes and seconds. Find how much time passes between two moments.

Other tools in this section

StopwatchTimerAge calculatorDays between datesWorking days

How to use

  1. STEP 1

    Enter the first time as hours : minutes : seconds.

  2. STEP 2

    Choose an action: add, subtract or difference.

  3. STEP 3

    Enter the second time and get the result instantly.

FAQ

How do I add time in the calculator?
Enter two durations, for example 1:45:30 and 2:20:15, and choose plus. The result is shown as hours : minutes : seconds and separately in minutes and seconds.
Can I calculate the time between two moments?
Yes, the Difference mode counts how much time passes between 9:15 and 17:40, including across midnight.
Does the calculator handle more than 24 hours?
Yes, there is no limit: 30 hours plus 20 hours gives 50 hours.
Where does my data go?
Nowhere. The tool runs entirely in your browser: the page loads once, then everything is calculated on your device. You can go offline and it keeps working.