A video length
A 5400-second video is 01:30:00 - an hour and a half.
Use Seconds to HH:MM:SS
Converts seconds to hh:mm:ss in this tab, with nothing sent anywhere.
Runs entirely on your deviceThe conversion happens in this browser tab. Nothing you type is uploaded, logged or stored, which is worth knowing for anything you would not paste into a search box.
A duration of 5,400 seconds formats as 01:30:00. This is elapsed time rather than a clock time or timestamp, so it does not involve time zones, dates, daylight-saving changes, or leap seconds.
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Browse all general convertersAbout Seconds to HH:MM:SS
Durations often arrive as a raw count of seconds - from a log, an API, a video length - but people read time as hours, minutes and seconds. Converting seconds to HH:MM:SS turns that count into a clock-style duration. So 3661 seconds becomes 01:01:01, and 5400 seconds reads as 01:30:00, the format a timestamp or a video position uses. Media players, subtitle files and analytics all emit raw seconds, so formatting them as a clock duration is what makes a length or a timestamp readable to a person. Cron and scheduling logs report gaps in seconds, so formatting them as hours and minutes is what turns a raw duration into something a person can scan. A formatted duration does not identify a time of day; keep any timestamp date and timezone separately.
Using Seconds to HH:MM:SS
- Type a number of seconds. You can paste a value with its unit; the tool reads the number.
- The exact factor is applied and the result is shown as HH:MM:SS, updating live as you type.
- Copy the answer, or switch to the reverse converter to go from HH:MM:SS back to seconds.
Where seconds to hh:mm:ss helps
Both directions
Need the opposite? The HH:MM:SS-to-seconds converter is linked below and uses the exact inverse factor.
Durations can exceed one day
A duration of 90,000 seconds is 25:00:00. Keeping 25 hours preserves the elapsed time; wrapping to 01:00:00 would turn it into a clock-style display and lose a day. When copying the result into a spreadsheet, use a duration format that allows more than 24 hours rather than a time-of-day format.
Before you use the result
- The result is rounded for readability, so a value converted and then converted back may differ in the last decimal place. The underlying factor is exact.
- Units in your input are ignored - only the number is read - so make sure the figure you type is really in seconds.
Questions about Seconds to HH:MM:SS
How is the time formatted?
As HH:MM:SS, zero-padded, with hours growing without limit. 3661 seconds becomes 01:01:01.
Is my data uploaded?
No. Seconds to HH:MM:SS does the arithmetic in this browser tab; the value is calculated on your device and is not sent to a server.
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