How many seconds in 1 Julian year?
The answer is 31557600.
We assume you are converting between second and Julian year.
You can view more details on each measurement unit: seconds or
Julian year
The SI base unit for time is the second.
1 second is equal to 3.1688087814029E-8 Julian year.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between seconds and years.
Type in your own numbers in the form to convert the units!

››Date difference between calendar days

You may also want to find out how many days
are between two dates on the calendar. Use the
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to get your age in days or measure the duration of an event.

››Want other units?

You can do the reverse unit conversion from
Julian year to seconds, or enter any two units below:

The second (symbol s) is a unit for time, and one of seven SI base units. It is defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom at zero kelvins.

››Definition: Year

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".

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