Time Addition Calculator
Add multiple time durations together in HH:MM:SS format. Supports HH:MM:SS, MM:SS, and plain seconds input. Shows total in hours, minutes, and seconds.
How to Use Time Addition Calculator
The Time Addition Calculator adds multiple time durations together and shows the total. Enter each duration on a separate line in HH:MM:SS, MM:SS, or plain seconds format. The tool sums all entries and displays the total in HH:MM:SS format plus decimal hours and minutes. Perfect for calculating total work hours, adding up video/podcast episode lengths, summing exercise durations, or any situation where you need to add multiple time periods together.
Step-by-Step Instructions
- Enter time durations one per line (HH:MM:SS, MM:SS, or seconds)
- Click Add Times to calculate the total
- View the sum in HH:MM:SS plus hours and minutes
- Copy the result with all format options
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