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

While the Gregorian calendar is used worldwide for official purposes such as government and business, many holidays, festivals and other celebrations and rites still follow traditional lunisolar calendars. —Brett Tingley, Space.com, 29 Jan. 2025

Different from the Gregorian calendar, the date varies each year and is based on the moon cycles. —Bryan West, USA TODAY, 29 Jan. 2025

This is typically between late November and late December on the Gregorian calendar. —Josh Hammer, Newsweek, 23 Dec. 2024

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

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