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A leap year (also known as an intercalary year or bissextile year) is a calendar year that contains an additional day (or, in the case of a lunisolar calendar, a month) compared to a common year. The 366th day (or 13th month) is added to keep the calendar year synchronised with the astronomical year or seasonal year . [ 1 ]
L 0 = A 0 + A 1 T + A 2 T 2 days where T is the time in Julian centuries. The derivative of this formula is an expression of the mean angular velocity, and the inverse of this gives an expression for the length of the tropical year as a linear function of T .
A leap year starting on Thursday is any year with 366 days (i.e. it includes 29 February) that begins on Thursday 1 January, and ends on Friday 31 December. Its dominical letters hence are DC . The most recent year of such kind was 2004 , and the next one will be 2032 in the Gregorian calendar [ 1 ] or, likewise, 2016 and 2044 in the obsolete ...
May 2 in recent years ... May 2 is the 122nd day of the year (123rd in leap ... Text is available under the Creative Commons Attribution-ShareAlike 4.0 License ...
Like all leap year types, the one starting with 1 January on a Sunday occurs exactly once in a 28-year cycle in the Julian calendar, i.e., in 3.57% of years. As the Julian calendar repeats after 28 years, it will also repeat after 700 years, i.e., 25 cycles. The formula gives the year's position in the cycle ((year + 8) mod 28) + 1).
The two calendars agreed again after a leap month lasting from 21 March to 19 April of that year was inserted into the Vietnamese calendar. In the Vietnamese zodiac, the cat replaces the Rabbit in the Chinese zodiac. So, a child born in the Chinese year of the Rabbit will be born in the Vietnamese year of the Cat (mẹo/mão).
{{is leap year|0}}: 1 BC is a leap year in the astronomical calendar (mostly pointless for actual calendars of such epoch, but correct in the astronomical calendar where it is year 0). {{is leap year|-100}} → 0: 101 BC is not a leap year in the astronomical calendar (mostly pointless for actual calendars of such epoch, but correct in the ...
The year 2000 was a leap year, but it broke one of the rules: 2000/4 = 500 ...That completes the 1st rule. 2000/100 = 20 ...That breaks the leap year rule,