Time Converter

Convert between units of time, from microseconds to years. Months and years vary in length on the calendar, so they use average values: a 365.25-day year and a 30.4375-day month.

60

Convert minutes

Convert hours

Convert seconds

Convert days

Convert weeks

Convert years

Convert months

Convert milliseconds

Convert microseconds

Time units

Minute (min)
A minute is exactly 60 seconds, one sixtieth of an hour.
Hour (h)
An hour is 60 minutes, exactly 3,600 seconds. There are 24 hours in a day.
Second (s)
The second is the SI base unit of time, defined as 9,192,631,770 periods of the radiation from a specific transition of the cesium-133 atom.
Day (d)
A day is 24 hours, exactly 86,400 seconds. It is based on the time the Earth takes to rotate once relative to the Sun.
Week (wk)
A week is 7 days, exactly 604,800 seconds or 168 hours.
Year (yr)
A year is the time the Earth takes to orbit the Sun, about 365.25 days. Calendar years have 365 days, or 366 in a leap year.
Month (mo)
A month is one of the twelve divisions of the calendar year, lasting 28 to 31 days. Its average length is about 30.44 days.
Millisecond (ms)
A millisecond is one thousandth of a second. It is used for computer response times, network latency and audio and video timing.
Microsecond (µs)
A microsecond is one millionth of a second, or one thousandth of a millisecond. It is used in electronics, computing and high-speed measurement.
Nanosecond (ns)
A nanosecond is one billionth of a second. It is used for processor and memory timing and in physics.
Fortnight (fn)
A fortnight is 14 days, or two weeks. The word is common in the United Kingdom, Ireland, Australia and New Zealand.
Decade (dec)
A decade is a period of 10 years.
Century (c)
A century is a period of 100 years.