◷Free
Add clock durations
Sum nonnegative HH:MM:SS durations; hours may exceed 23.
Each row is a duration rather than a time of day, so 25:00:00 is valid. The tool converts each row to seconds and sums them; 01:30:00 plus 00:45:00 returns 02:15:00, 8,100 seconds and 2.25 hours.
How to use
- Enter your text, values, or image.
- Adjust the options and run the tool.
- Copy or download your result.
Worked example
Example input
Durations, one per line: 01:30:00 00:45:00
Example result
{
"totalSeconds": 8100,
"totalDuration": "02:15:00",
"decimalHours": 2.25
}Limitations and details
Enter at most 1,000 rows with minute and second fields from 00 to 59; negative or fractional-second durations are not accepted.
Inputs and options
- Durations, one per line
- Text
Frequently asked questions
Is this tool free and private?
Yes. All 300 tools are free in this phase. Processing happens in your browser; your input and files are not sent to our servers.