How many hour in 1 sidereal year? The answer is 8766.15264. We assume you are converting between hour and sidereal year. You can view more details on each measurement unit: hour or sidereal year The SI base unit for time is the second. 1 second is equal to 0.00027777777777778 hour, or 3.1687536047488E-8 sidereal year. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between hours and years. 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 calculatorto get your age in days or measure the duration of an event.
You can do the reverse unit conversion from sidereal year to hour, or enter any two units below:
The hour was originally defined in Egypt as 1/24 of a day, based on their duo-decimal numbering system (which counted finger joints on each hand).
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.
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, 70 kg, 150 lbs, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!