How the time converter works
Last updated 10 November 2026
This converter uses exact definitions of each unit, so results are as accurate as the number you enter.
How it works
- Each unit is a fixed number of seconds.
Worked example
With the starting figures:
- 90.0000 min is 1.500000 h.
What it converts
This converter moves between seconds, minutes, hours, days and weeks. It is handy for turning a long download time into hours, a project estimate into working days or a tiny measurement into seconds.
Why there are no months or years
Months and years are not fixed lengths. A month can be twenty-eight, twenty-nine, thirty or thirty-one days long and a year can have a leap day. A converter that is exact needs fixed units, so months and years are left out. For calendar spans use the date difference calculator.
Everyday examples
- Turn the minutes on a timer into hours and minutes.
- Work out how many weeks are in a number of days.
- Check how many seconds are in a day when you set up a schedule.
- Convert hours of work into days for a rough estimate.
Time zones and clocks
The tool converts lengths of time. It does not convert times of day between time zones. South Africa does not use daylight saving, but many other countries do, so check the clock rules where your meeting or flight is.
Rounding
The answer is shown to a set number of decimals, but the sum itself is exact. If you need whole minutes or hours for a timesheet, round the displayed answer yourself, and decide whether to round up or down.
Things to watch
- Daylight saving does not apply in South Africa, but it does elsewhere.
The conversion factors are definitions, not measurements. They are listed with their source in the data notes. Nothing you enter is stored or sent.
Like every tool on MoneyMzansi, this one runs entirely in your browser. There is no account, no upload and no sign-up, so it keeps working even if your connection drops once the page has loaded.