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Time Unit Converter

Convert seconds, minutes, hours, days, weeks, months and years, including milliseconds and microseconds.

How to use

  1. 1Enter an amount of time and its unit.
  2. 2Pick the unit to convert to.

How it's calculated

Converts through seconds. Months and years use Gregorian averages: a year is 365.2425 days and a month is one twelfth of that.

Frequently asked questions

How many seconds are in a day?

86,400 seconds (24 × 60 × 60).

How long is an average month?

About 30.44 days — a Gregorian year (365.2425 days) divided by 12.

How many hours are in a week?

168 hours — 7 days × 24 hours each.