Definition of Gregorian calendar:
The calendar introduced in 1582 by Pope Gregory XIII, as a modification of the Julian calendar.
The ubiquitous solar calendar used all over the world in which every (non-leap) year equals 365.25 days and every fourth (leap) year has 366 days. Instituted in 1582 by Pope Gregory XIII as a revised version of the then-prevalent Julian Calendar which had no provision for the extra quarter day every year.
How to use Gregorian calendar in a sentence?
- The Gregorian calendar improves on the Julian only in its measurement of the year and its calculation of leap years.
Meaning of Gregorian calendar & Gregorian calendar Definition