Search results
Results from the WOW.Com Content Network
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 ]
Normally, a year is a leap year if it is evenly divisible by four. A year divisible by 100 is not a leap year in the Gregorian calendar unless it is also divisible by 400. For example, 1600 was a leap year, but 1700, 1800 and 1900 were not. Some programs may have relied on the oversimplified rule that "a year divisible by four is a leap year".
He said the rule is if a “year is divisible by 100 and not divisible by 400,” then the leap year is skipped to adjust the time difference given to years with the extra day.
Rather than a regular 365-day year, the leap year adds an extra day to “keep the calendar in sync with the seasons”. For a year to be a leap year, it has to be divisible by four or 400.
If the math isn’t adding up for you, here’s what happened in 2000. 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 ...
February 29 – A rare century leap year date occurs. Usually, century years are common years due to not being exactly divisible by 400. 2000 is the first such year to have a February 29 since the year 1600, making it only the second such occasion since the Gregorian Calendar was introduced in 1582. The next such leap year will occur in 2400.
That resulted in the years 1700, 1800, and 1900 losing their leap day, but 2000 adding one. Every other fourth year in all of these centuries would get it's Feb. 29. And with that the calendrical ...
Bold figures (e.g., 04) denote leap year. If a year ends in 00 and its hundreds are in bold, it is a leap year. Thus 19 indicates that 1900 is not a Gregorian leap year, (but bold 19 in the Julian column indicates that it is a Julian leap year, as are all Julian x00 years). 20 indicates that 2000 is a leap year. Use bold Jan and Feb only in ...