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Calendar

From Simple English Wikipedia, the free encyclopedia
2026 in other calendars
Gregorian calendar2026
MMXXVI
Ab urbe condita2779
Armenian calendar1475
ԹՎ ՌՆՀԵ
Assyrian calendar6776
Bahá'í calendar182–183
Balinese saka calendar1947–1948
Bengali calendar1433
Berber calendar2976
British Regnal yearCha. 3 – 5 Cha. 3
Buddhist calendar2570
Burmese calendar1388
Byzantine calendar7534–7535
Chinese calendar乙巳(Wood Snake)
4722 or 4662
    — to —
丙午年 (Fire Horse)
4723 or 4663
Coptic calendar1742–1743
Discordian calendar3192
Ethiopian calendar2018–2019
Hebrew calendar5786–5787
Hindu calendars
 - Vikram Samvat2082–2083
 - Shaka Samvat1947–1948
 - Kali Yuga5126–5127
Holocene calendar12026
Igbo calendar1026–1027
Iranian calendar1404–1405
Islamic calendar1447–1448
Japanese calendarReiwa 8
(令和8年)
Javanese calendar1959–1960
Juche calendar115
Julian calendarGregorian minus 13 days
Korean calendar4359
Minguo calendarROC 115
民國115年
Nanakshahi calendar558
Thai solar calendar2569
Tibetan calendar阴木蛇年
(female Wood-Snake)
2152 or 1771 or 999
    — to —
阳火马年
(male Fire-Horse)
2153 or 1772 or 1000
Unix time1767225600 – 1798761599

A calendar is a tool for organizing days. People use calendars to say when something happened, and for planning things that have not happened yet. The calendar gives the days names and numbers, called calendar dates. The dates are usually made based on how things in the sky seem to move. The year and month are based on motions of the Sun and moon. By knowing what day something happened or will happen, people have an easier life. Since the beginning of history, knowing when the seasons would start for crops was very important for farmers.

Calendar systems have a beginning time or era. The calendar era is often a religion-based event, such as the birth of Jesus, but it may be a political event such as a coronation or the founding of a state. Dates that are counted from the coronation are called "regnal".

The three principal calendars most used today are the Gregorian, Hebrew, and Islamic calendars. Other calendar systems from many different parts of the world are also used.

Basis[change]

Calendars are based on three natural things:

  1. The Earth turns all the way around its axis.
  2. The Moon goes all the way around the Earth.
  3. The Earth goes all the way around the Sun.

The Earth turns all the way around its axis about 24 hours. It is called the Solar Day. Days of most calendars are strongly based on the Solar Day.

The Moon turns all the way around the Earth about 29 days, 12 hours, 44 minutes and 2 seconds. Months of some calendars are still strongly based on the Moon. These are called Lunar calendars, which lasts about 354-355 days. Solar calendars ignore the moon, and depend entirely on the Sun.

The Earth goes all the way around the Sun in about 365 days, 5 hours, 48 minutes and 46 seconds. This is called the Solar year. Years of most calendars are strongly based on the Solar year.

Related pages[change]

Other websites[change]