How many sidereal year in 1 seconds?
The answer is 3.1687536047488E-8.

We assume you are converting between **sidereal year** and **second**.

You can view more details on each measurement unit:

sidereal year or
seconds

The SI base unit for **time** is the second.

1 sidereal year is equal to 31558149.504 second.

Note that rounding errors may occur, so always check the results.

Use this page to learn how to convert between years and seconds.

Type in your own numbers in the form to convert the units!

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

1 sidereal year to seconds = 31558149.504 seconds

2 sidereal year to seconds = 63116299.008 seconds

3 sidereal year to seconds = 94674448.512 seconds

4 sidereal year to seconds = 126232598.016 seconds

5 sidereal year to seconds = 157790747.52 seconds

6 sidereal year to seconds = 189348897.024 seconds

7 sidereal year to seconds = 220907046.528 seconds

8 sidereal year to seconds = 252465196.032 seconds

9 sidereal year to seconds = 284023345.536 seconds

10 sidereal year to seconds = 315581495.04 seconds

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

sidereal year to minute

sidereal year to week

sidereal year to millennium

sidereal year to shake

sidereal year to hour

sidereal year to day

sidereal year to fortnight

sidereal year to quarter

sidereal year to decade

sidereal year to century

A sidereal year (from Latin sidus "asterism, star") is the time taken by the Earth to orbit the Sun once with respect to the fixed stars. Hence it is also the time taken for the Sun to return to the same position with respect to the fixed stars after apparently travelling once around the ecliptic. It equals 365.25636 SI days for the J2000.0 epoch.

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.

**ConvertUnits.com** provides an online
conversion calculator for all types of measurement units.
You can find metric conversion tables for SI units, as well
as English units, currency, and other data. Type in unit
symbols, abbreviations, or full names for units of length,
area, mass, pressure, and other types. Examples include mm,
inch, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm,
metres squared, grams, moles, feet per second, and many more!