How many hours in 1 Gregorian year?
The answer is 8765.82.
We assume you are converting between hour and Gregorian year.
You can view more details on each measurement unit: hours or
Gregorian year
The SI base unit for time is the second.
1 second is equal to 0.00027777777777778 hours, or 3.1688738506811E-8 Gregorian 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!

››Date difference between calendar days

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.

››Want other units?

You can do the reverse unit conversion from
Gregorian year to hours, 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).

››Definition: Year

An average Gregorian year is 365.2425 days (52.1775 weeks, 8765.82 hours, 525949.2 minutes or 31556952 seconds). For this calendar, a common year is 365 days (8760 hours, 525600 minutes or 31536000 seconds), and a leap year is 366 days (8784 hours, 527040 minutes or 31622400 seconds). The 400-year cycle of the Gregorian calendar has 146097 days and hence exactly 20871 weeks.

a_{g} = a_g = 365.2425 days for the mean Gregorian year

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