Common year

A common year is a calendar year with 365 days, as distinguished from a leap year, which has 366. More generally, a common year is one without intercalation. The Gregorian calendar, (like the earlier Julian calendar), employs both common years and leap years to keep the calendar aligned with the tropical year, which does not contain an exact number of days.

The common year of 365 days has 52 weeks and one day, hence a common year always begins and ends on the same day of the week (for example, January 1 and December 31 fell on a Sunday in 2017) and the year following a common year will start on the subsequent day of the week. In common years, February has four weeks, so March will begin on the same day of the week. November will also begin on this day.

In the Gregorian calendar, 303 of every 400 years are common years. By comparison, in the Julian calendar, 300 out of every 400 years are common years, and in the Revised Julian calendar (used by Greece) 682 out of every 900 years are common years.

  • calendars

Calendars


Other Languages
Afrikaans: Gewone jaar
Alemannisch: Gemeinjahr
العربية: سنة بسيطة
asturianu: Añu común
Bân-lâm-gú: Pêng-nî
भोजपुरी: साधारण साल
català: Any comú
dansk: Normalår
Deutsch: Gemeinjahr
Ελληνικά: Κοινό έτος
español: Año común
euskara: Urte arrunt
فارسی: سال عادی
français: Année commune
贛語: 平年
한국어: 평년
हिन्दी: आम वर्ष
Bahasa Indonesia: Tahun biasa
íslenska: Almennt ár
italiano: Anno ordinario
Limburgs: Gewoen jaor
Mìng-dĕ̤ng-ngṳ̄: Bìng-nièng
монгол: Ердийн жил
日本語: 平年
norsk: Normalår
norsk nynorsk: Normalår
polski: Rok zwykły
português: Ano comum
Gagana Samoa: Tausaga masani
Sesotho sa Leboa: Ngwaga wago tlwaelega
Simple English: Common year
српски / srpski: Проста година
Vahcuengh: Bingznienz
吴语: 平年
粵語: 平年
中文: 平年