Convert a duration between milliseconds, seconds, minutes, hours, days, weeks, months and years. Type a number, choose the units and the answer appears at once, along with the formula and every other unit.
It helps with project estimates, timesheets, cooking and workout timers, video lengths, programming timeouts in milliseconds and school problems. Months and years use average Gregorian lengths, which is the fair choice for long periods.
How to use the Time Converter tool
- Type the number you want to convert in the Value box, for example 90 with minutes selected.
- Pick the unit you have in From and the unit you need in To.
- Read the result instantly in large type, with the exact formula used shown underneath.
- Open All time units to see the same value in every unit at once, or press ⇄ to swap the direction.
- Use Copy result to paste the converted number into a document, spreadsheet or message.
Why use ToolOrca Time Converter
- Eight units from ms to years
- Average month and year lengths
- Handy for timeouts and timesheets
- All units side by side
- Instant, accurate results
- Free, no ads inside the tool
How time units relate
1 minute = 60 seconds, 1 hour = 60 minutes = 3,600 seconds, 1 day = 24 hours = 86,400 seconds and 1 week = 7 days. Months and years vary in length, so the converter uses the Gregorian averages: a year of 365.2425 days and a month of 30.436875 days.
Worked example: 90 minutes ÷ 60 = 1.5 hours. 1,000,000 seconds ÷ 86,400 = 11.5741 days.
Frequently asked questions
How many seconds are in a day?
There are 86,400 seconds in a day (24 × 60 × 60).
How many hours are in a year?
An average year is 8,765.82 hours; a common 365-day year is 8,760 hours.
How many weeks are in a year?
A year is 52.1775 weeks on average, which is 52 weeks and 1 or 2 days.
How do I convert minutes to hours?
Divide by 60. For example 135 minutes ÷ 60 = 2.25 hours, which is 2 hours 15 minutes.