Time Converter

Convert between different time units including seconds, minutes, hours, days, weeks, months, years, and more specialized units like milliseconds and microseconds.

Note: For units like months and years, this converter uses average values (30.44 days for a month and 365.25 days for a year) to account for variations in month lengths and leap years.

From:

To:

Conversion Formula:

1 hour = 60 minutes

Common Time Conversions

1 day = 24 hours

1 hour = 60 minutes

1 minute = 60 seconds

1 week = 7 days

1 year = 52.1775 weeks

1 second = 1000 milliseconds

Interesting Time Facts

A leap year occurs every 4 years, adding an extra day (February 29) to the calendar.
A sidereal day (23 hours, 56 minutes, 4.1 seconds) is slightly shorter than a solar day (24 hours) because Earth rotates while orbiting the Sun.
A light-year is a measure of distance, not time. It's the distance light travels in one year (about 9.46 trillion kilometers).
The atomic second is defined as the duration of 9,192,631,770 periods of radiation corresponding to the transition between two hyperfine levels of the ground state of cesium-133.
The concept of "leap seconds" occasionally adds or removes seconds from UTC time to account for irregularities in Earth's rotation.