Duration Formatter

Turn seconds, minutes or hours into a readable duration, and turn text like 2h 30m back into totals.

Format a duration

Readable: —
Clock: —
Totals: —
Total seconds: —
Minutes: — · Hours: — · Days: —
Text accepts forms such as 2h 30m, 1d 4h, 90 minutes or 1:30:00. A bare number counts as seconds and a two part clock value as minutes and seconds.

How to use the Duration Formatter

  1. Type a value and pick whether it is seconds, minutes, hours or days.
  2. Read the readable duration, the clock form and the totals in every unit.
  3. Paste text such as 2h 30m or 1:30:00 into the second box to convert it back.

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Frequently Asked Questions

Common questions about the free online duration formatter.

Type the number of seconds in the value box and the readable wording, the clock form and the totals appear at the same time.
The clock line shows hours, minutes and seconds, and it grows a leading day figure when the duration runs past twenty four hours.
Set the unit to minutes and type your value. The totals line gives the same duration in seconds, hours and days.
Forms such as 2h 30m, 1d 4h, 90 minutes, 45s and 1:30:00 all work. A bare number is read as seconds.
A value such as 1:30 is read as one minute and thirty seconds, while 1:30:00 is read as one hour and thirty minutes.
Days are counted as twenty four hour blocks, so 93784 seconds becomes one day, two hours, three minutes and four seconds.
Totals are rounded for display, to two decimals for seconds and three decimals for hours and days, so long values stay readable.
No. Every conversion happens in your browser and no value or text you type is sent anywhere.
Yes. The formatter is responsive and works in any modern browser on a phone, a tablet and a desktop.

Last updated: October 10, 2026