Gregorian calendar

[ gri-gawr-ee-uhn kal-uhn-der ]

noun

1. the reformed Julian calendar now in use, according to which the ordinary year consists of 365 days, and a leap year of 366 days occurs in every year whose number is exactly divisible by 4 except centenary years whose numbers are not exactly divisible by 400, such as 1700, 1800, and 1900.

Gregorian calendar

noun

1. the revision of the Julian calendar introduced in 1582 by Pope Gregory XIII and still in force, whereby the ordinary year is made to consist of 365 days and a leap year occurs in every year whose number is divisible by four, except those centenary years, such as 1900, whose numbers are not divisible by 400

Word History and Origins

Origin of Gregorian calendar¹

First recorded in 1640–50; named after Pope Gregory XIII; -ian

Example Sentences

In the Gregorian calendar used in much of the rest of the world, that date is 8 March.

From BBC

That’s why most of the modern world has adopted the Gregorian calendar and its leap year system to allow days and months to stay in step with the seasons.

From National Geographic

His Gregorian calendar took effect in the late 16th century.

From Seattle Times

The Gregorian calendar, intended to more accurately mark the solar year, was adopted in 1752, adding 11 days.

From Seattle Times

Modern China actually uses a Gregorian calendar like most of the rest of the world.

From National Geographic