Duration Converter
/duration-converterConvert durations between seconds, minutes, hours, days, and weeks — plus ISO 8601 duration strings.
Durations come in seconds, minutes, hours, and ISO 8601 strings depending on the system you are using. This converter translates between all of them and shows the breakdown in each unit. It is handy for API work, video editing, and scheduling. Conversion is instant and fully client-side.
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- 02Configure
- 03Run
- 04Download
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How to use
How to use Duration Converter
- 1Enter the duration as seconds, an HH:MM:SS time, or an ISO 8601 string.
- 2Read the breakdown in every unit as you type.
- 3Copy the format you need.
FAQ
Frequently asked questions
Everything you need to know about duration converter.
Which input formats are accepted?
A plain number of seconds, an HH:MM:SS or HH:MM time string, or an ISO 8601 duration string are all accepted and converted instantly.
What is ISO 8601 duration output?
Standard duration notation such as P1DT2H30M, where P marks the period and T separates time components, widely used in APIs, calendars, and configuration files.
Which units can I convert between?
Seconds, minutes, hours, days, and weeks are supported, and the tool shows the equivalent value in every unit at once so you never have to chain conversions.
How are fractional values handled?
Decimal seconds and fractional durations are preserved and converted with full precision, so values like 90.5 seconds convert accurately across every unit.
Is the conversion done locally?
Yes. All duration math runs entirely in your browser, so time values from schedules or media files are never uploaded anywhere.
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