Calendar era

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2022 in other calendars
Gregorian calendar2022
MMXXII
Ab urbe condita2775
Armenian calendar1471
ԹՎ ՌՆՀԱ
Assyrian calendar6772
Bahá'í calendar178–179
Balinese saka calendar1943–1944
Bengali calendar1429
Berber calendar2972
British Regnal year70 Eliz. 2 – 71 Eliz. 2
Buddhist calendar2566
Burmese calendar1384
Byzantine calendar7530–7531
Chinese calendar辛丑(Metal Ox)
4718 or 4658
    — to —
壬寅年 (Water Tiger)
4719 or 4659
Coptic calendar1738–1739
Discordian calendar3188
Ethiopian calendar2014–2015
Hebrew calendar5782–5783
Hindu calendars
 - Vikram Samvat2078–2079
 - Shaka Samvat1943–1944
 - Kali Yuga5122–5123
Holocene calendar12022
Igbo calendar1022–1023
Iranian calendar1400–1401
Islamic calendar1443–1444
Japanese calendarReiwa 4
(令和4年)
Javanese calendar1955–1956
Juche calendar111
Julian calendarGregorian minus 13 days
Korean calendar4355
Minguo calendarROC 111
民國111年
Nanakshahi calendar554
Thai solar calendar2565
Tibetan calendar阴金牛年
(female Iron-Ox)
2148 or 1767 or 995
    — to —
阳水虎年
(male Water-Tiger)
2149 or 1768 or 996
Unix time1640995200 – 1672531199

A calendar era is the year numbering system used by a calendar. The Gregorian calendar for example numbers its years in the Western Anno Domini system (the Coptic Orthodox and Ethiopian Orthodox churches have their own Christian eras). The instant, date, or year from which time is marked is called the epoch of the era. There are many different calendar eras such as Saka Era.

In ancient times, regnal years were counted from the year a new monarch took the throne. This makes ancient timelines very difficult to reconstruct, because they are based on separate and scattered king lists, such as the Sumerian King List and the Babylonian Canon of Kings. In East Asia, having era names based on ruling monarchs ended in the 20th century except for Japan, where they are still used.

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