Time Converter

Convert units of time, from milliseconds to years.

From

1 hour = 60 minutes

Formula: min = h × 60

The same amount in other units

Unit	Value
Millisecond (ms)	3,600,000
Second (s)	3,600
Minute (min)	60
Hour (h)	1
Day (d)	0.04166666667
Week (wk)	0.005952380952
Month (mo)	0.001368953503
Year (yr)	0.0001140794586

Popular conversions

Fixed and average units of time

Seconds, minutes, hours, days and weeks always have the same length, so converting between them is exact. A day is 24 hours, or 86,400 seconds.

Months and years are different. Months have 28 to 31 days, and leap years have 366 days. This converter uses the averages of the calendar we use, the Gregorian calendar, which is 365.2425 days per year and 30.436875 days per month. For exact dates, count the days on a calendar instead.

Watch out for decimal hours. 1.5 hours is 1 hour and 30 minutes, not 1 hour and 50 minutes.

Units in this converter

Millisecond (ms): One thousandth of a second. Used for timing in computing and sports.
Second (s): The SI base unit of time.
Minute (min): 60 seconds.
Hour (h): 60 minutes, or 3,600 seconds.
Day (d): 24 hours, or 86,400 seconds.
Week (wk): 7 days, or 168 hours.
Month (mo): Months have 28 to 31 days, so this converter uses the average month of the Gregorian calendar, 30.436875 days.
Year (yr): The average year of the Gregorian calendar, 365.2425 days, which takes leap years into account.

Frequently asked questions

How many seconds are in a day?

86,400 seconds, which is 24 hours × 60 minutes × 60 seconds.

How many days are in a year?

A normal year has 365 days and a leap year has 366. Averaged over the Gregorian calendar's 400-year cycle, a year is 365.2425 days, which is the value this converter uses.

How do I turn decimal hours into hours and minutes?

Keep the whole hours and multiply the decimal part by 60. For example, 2.75 hours is 2 hours plus 0.75 × 60 = 45 minutes.