Time converter

Below are time converter of various measurement systems, including:


Metric system

Metric system — basic units of time based on the second.

  1. nanosecond (ns)

  2. microsecond (µs)

  3. millisecond (ms)

  4. second (s)

  5. minute (min)

  6. hour (h)

  7. day (d)

Calendar units

Calendar units — calendar units used in everyday life.

  1. week

  2. month (average)

  3. year (365 days)

  4. leap year (366 days)

  5. decade

  6. century

Astronomical units

Astronomical units — time units used in astronomy and physics.

  1. Julian year

  2. sidereal day

  3. sidereal year

  4. galactic year

  5. Planck time

Historical units

Historical units — historical and rare units of time.

  1. moment (90 s)

  2. quarter of an hour

  3. watch (4 h)

  4. fortnight

  5. Olympiad (4 years)