Time Calculator
Add, subtract & find duration between times
How to Use
Choose mode
Select Add Times, Subtract, or Duration.
Enter first time
Input hours, minutes, and seconds for the first time.
Enter second time
Input hours, minutes, and seconds for the second time.
View result
See the result in HH:MM:SS format plus total seconds, minutes, and decimal hours.
Frequently Asked Questions
How do I add times together?
Add hours, minutes, and seconds separately, then carry over when needed (60 seconds → 1 minute, 60 minutes → 1 hour).
Can I subtract times?
Yes! Switch to Subtract mode to find the difference. Results can be negative if the second time is larger.
What is duration mode?
Duration mode calculates the absolute difference between two times, useful for finding elapsed time.
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