Gregorian calendar
noun/ɡrɪˌɡɔːriən ˈkælɪndə(r)/
/ɡrɪˌɡɔːriən ˈkælɪndər/
[singular]- the system used since 1582 in Western countries of arranging the months in the year and the days in the months and of counting the years from the birth of Christ compare Julian calendarTopics Timec2
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Gregorian calendar