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

But unlike holidays fixed to the Gregorian calendar, its timing shifts each year, governed by the cycles of the moon, while the venue — the Great Mosque — sees some helpful astronomical alignments. —Jamie Carter, Forbes.com, 4 June 2025

Her university studies in philosophy and literature are evident in its design: A poem written in the movement’s cogs only aligns a few times a year (when the moon cycle and Gregorian calendar cycle meet) and can only be read if the watch is taken apart. —Rosa Rahimi, CNN Money, 29 Apr. 2025

When can Easter occur? The U.S. and most of the world use the Gregorian calendar, which can place the date of Easter anywhere between March 22 and April 25. —Carlie Procell, USA Today, 16 Apr. 2025

Western Christianity uses the Gregorian calendar, while Orthodox Christianity uses the Julian calendar. —Jamie Carter, Forbes.com, 2 Apr. 2025

Word History

First Known Use

circa 1771, in the meaning defined above

Rhymes for Gregorian calendar

• calender
• kalendar

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