**Full name:** Julian year

**Plural form:** years

**Symbol:** yr

**Alternate spelling:** Julian years

**Category type:** time

**Scale factor:** 31557600

The SI base unit for time is the second.

1 second is equal to 3.1688087814029E-8 Julian year.

Valid units must be of the **time** type.

You can use this form to select from known units:

A year is the time between two recurrences of an event related to the orbit of the Earth around the Sun. In astronomy, the Julian year is a unit of time, defined as 365.25 days of 86,400 SI seconds each (no leap seconds), or 31,557,600 seconds total.

We default to using the Gregorian year on this site, but you can select a specific type of year by entering the full name like "Julian year".

Julian year to tropical month

Julian year to second

Julian year to Gregorian year

Julian year to minute

Julian year to decade

Julian year to shake

Julian year to sidereal year

Julian year to millennium

Julian year to anomalistic year

Julian year to microsecond