Time Converter
Convert seconds, minutes, hours, days, weeks, months and years, down to milliseconds and nanoseconds.
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All units
Time Converter
Convert any length of time between units, from nanoseconds to millennia. Months and years are averages (a year is 365.2425 days in the Gregorian calendar, a month one twelfth of that), which is what you want for general conversions; for the exact time between two dates, use a date calculator.
How to use Time Converter
- Type the value you want to convert.
- Choose the unit you have in From and the unit you want in To. The swap button turns the conversion round.
- Read the answer, with the formula underneath. For example, 1 day = 86,400 seconds.
- Open All units to see the value in every unit at once, and copy the one you need.
When it comes in handy
- Turning milliseconds from a log or API into readable time.
- Converting durations for project plans.
- Maths and science homework.
Frequently asked questions
- How long is a year in this converter?
- 365.2425 days, the average Gregorian year, which includes leap years. A month is 30.436875 days.
- How many seconds are in a week?
- 604,800.