Difference between revisions of "Language/Multiple-languages/Culture/Calendars-and-Clocks"

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* There are 12 months in a year
* There are 12 months in a year
* Days for months are 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
* Days for months are 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
* The start and end of a day is the midnight at Greenwich added or subtracted by multiples of 1 hour, and in some cases further add or subtract multiples of quarter of hour
* The start and end of a day is the midnight at Greenwich added or subtracted by multiples of 1 hour, and in some cases further add or subtract 0.5 or 0.25 of hours
* The leap day is placed in the second month
* The leap day is placed in the second month
* There is 1 leap day every 4 years, except when the year is divisible by 100 and not divisible by 400
* There is 1 leap day every 4 years, except when the year is divisible by 100 and not divisible by 400
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* There are 29 or 30 days in a month, determined by the moon phase
* There are 29 or 30 days in a month, determined by the moon phase
* The first day of a month is the day with new moon
* The first day of a month is the day with new moon
* The start and end of a day is the midnight at Greenwich added or subtracted by multiples of 1 hour, and in some cases further add or subtract multiples of quarter of hour
* The start and end of a day is the midnight at Greenwich added or subtracted by multiples of 1 hour, and in some cases further add or subtract 0.5 or 0.25 of hours
* Leap month is the first month without a solar term of an even number
* Leap month is the first month without a solar term of an even number
* (7 leaps in 19 years)
* (7 leaps in 19 years)

Revision as of 11:10, 30 May 2022

This is a list of calendar and timekeeping around the world.

Calendar

name description
Gregorian calendar
  • The year one is the year of presumed birth of Jesus of Nazareth
  • There are 12 months in a year
  • Days for months are 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
  • The start and end of a day is the midnight at Greenwich added or subtracted by multiples of 1 hour, and in some cases further add or subtract 0.5 or 0.25 of hours
  • The leap day is placed in the second month
  • There is 1 leap day every 4 years, except when the year is divisible by 100 and not divisible by 400
  • (97 leaps in 400 years)
Chinese calendar
  • The year one is the year of presumed birth of Jesus of Nazareth
  • There are 12 or 13 months in a year
  • The first month is the month with winter solstice
  • There are 29 or 30 days in a month, determined by the moon phase
  • The first day of a month is the day with new moon
  • The start and end of a day is the midnight at Greenwich added or subtracted by multiples of 1 hour, and in some cases further add or subtract 0.5 or 0.25 of hours
  • Leap month is the first month without a solar term of an even number
  • (7 leaps in 19 years)
Islamic calendar
  • The year one is the year of Hijra
  • There are 12 months in a year
  • There are 29 or 30 days in a month, determined by the moon phase / There are 30 days in months of an odd number, 29 days in months of an even number
  • The first day of a month is the day with the first sight of the crescent
  • The start and end of a day is at sunset.
  • Month with the leap day is the last month
  • Year with the leap day is the year when the remainder is over half a day
  • (11 leaps in 30 years)

Timekeeping

name description
common timekeeping
  • 1 day is divided by 12 units ‘hour’ evenly
  • 1 hour is divided by 60 units ‘minute’ evenly
  • 1 minute is divided by 60 units ‘second’ evenly
  • 1 leap second is added to the last minute of a day irregularly
Chinese timekeeping
  • 1 day is divided by 12 units ‘時’ evenly
  • 1 時 is divided into 2 parts: ‘初’, ‘正’ evenly
  • Every 初 and 正 is divided by 4 units ‘刻’ evenly
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