Gregorian calendar

noun

: a calendar in general use introduced in 1582 by Pope Gregory XIII as a revision of the Julian calendar, adopted in Great Britain and the American colonies in 1752, marked by the suppression of 10 days or after 1700 11 days, and having leap years in every year divisible by four with the restriction that centesimal years are leap years only when divisible by 400 see Months of the Principal Calendars Table

Examples of Gregorian calendar in a Sentence

Recent Examples on the Web

As a result, Ramadan moves earlier by about 11 days each year in the Gregorian calendar, cycling through all seasons over 33 years. —Jamie Carter, Forbes, 7 Jan. 2025

The start of the Gregorian calendar year comes with lots of resolutions to get back into working out — or to embark upon a fitness journey for the first time. —James Factora, Them, 6 Jan. 2025

This collection of stories will introduce you to competing conceptions of time, teach you how to build a clock with incense, and help you to understand the mysteries of the Gregorian calendar (and possibly time travel). —The Editors, JSTOR Daily, 26 Dec. 2024

Christmas and Hanukkah both always fall on the 25th, but of two different months, with Christmas coming on the 25th of December on the Gregorian calendar, and Hanukkah starting on the 25th day of the month of Kislev in the Jewish calendar. —Aliza Chasan, CBS News, 24 Dec. 2024

Word History

First Known Use

circa 1771, in the meaning defined above

Kids Definition

Gregorian calendar

noun

Gre·​go·​ri·​an calendar

gri-ˌgōr-ē-ən-,

-ˌgȯr-

: a calendar introduced by Pope Gregory XIII in 1582 and adopted in Great Britain and the American colonies in 1752 compare julian calendar