ISO 8601 duration to readable text
ISO 8601 durations appear in video APIs, XML schemas, calendars and databases. Paste one to read it at a glance.
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How to use it
- Enter iso 8601 duration.
- The result appears straight away and updates as you edit.
- Copy the result, or copy a link that keeps the same values to share it.
How it is calculated
P starts the duration; before T come Y years, M months, W weeks and D days; after T come H hours, M minutes and S seconds. Totals use week = 7 days and day = 86,400 s.
Example
Inputs: ISO 8601 duration = P1DT2H30M. Result: Duration: 1 day, 2 hours, 30 minutes; Total seconds: 95,400; Total hours: 26.5.
Limits and caveats
- Years and months vary in length, so no total in seconds is given for them.
- The alternative form such as P0001-02-03T04:05:06 and negative durations are not supported.
Questions about this tool
What does PT1H30M mean?
1 hour 30 minutes. T separates the date part from the time part, and M after T means minutes.
What is the difference between P1M and PT1M?
P1M is one month because M comes before T; PT1M is one minute.
Are fractions allowed?
Yes, on the last component only, as in PT0.5H or PT1M30.5S.