I was told a leap year was every 4 years but now i've been told the year has to be divisible by 4 or 400 and then i was told it happened every 97 years and it's all very confusing. If anyone can just tell me when the next leap year happens and when they happen it would ease my troubled mind
2006-08-09 16:42:09 · 18 answers · asked by Veronique 1 in Science & Mathematics ➔ Other - Science
The calender is so designed that it repeats itself after 400 years.
For example see this:
Say the first day of the year 2001 is a Monday. Every year there are 365 days i.e. 52 weeks and 1 odd day. (That makes 1 jan 2002 a tuesday) For a leap year it is 366 days i.e. 2 odd days.
Any year is considered to be a leap year if it is divisible by 4. But if the year is divisible by 100 then it should be divisible by 400.
So 2001-2100 contains 24 leap years(2100 is not a leap year) and 76 ordinary years
making it
76*1+24*2 = 124/7 = 5 odd days
Similarly for 2100-2200 and 2200-2300 also contain 5 odd days each.
But 2300 to 2400 contains 25 leap years as 2400 is a leap year
So the number of odd days is
75+ 25*2= 150 /7 = 6 odd days
Therefore number of odd days for the whole of 400 years is
5+5+5+6 = 21/7 = 0 odd days
Again making Jan 1 2401 a monday.
2006-08-09 17:16:00 · answer #1 · answered by Maddy 1 · 0⤊ 0⤋
2008, of course!
In general, a year is a leap year if it is divisible by 4. However, if the year is divisible by 100, it is only a leap year if it is also divisible by 400. Therefore, 1900 was not a leap year, but 2000 and 2004 were. The 97 comes from the fact that in every 400 years, there are 97 leap years - i.e. 100 years divisible by 4, minus 4 years divisible by 100, plus 1 year divisible by 400 = 97
2006-08-09 16:50:29 · answer #2 · answered by BANANACREAMPIE1 2 · 0⤊ 0⤋
2008
2006-08-09 16:47:28 · answer #3 · answered by arveen paria arasuk 6 · 0⤊ 0⤋
2008
2006-08-09 16:45:46 · answer #4 · answered by Max K 3 · 0⤊ 0⤋
2008
2006-08-09 16:45:20 · answer #5 · answered by Anonymous · 0⤊ 0⤋
2008
2006-08-09 16:45:15 · answer #6 · answered by pitbullcopper2004 5 · 0⤊ 0⤋
2008
2006-08-09 16:45:13 · answer #7 · answered by Anonymous · 0⤊ 0⤋
2008
2006-08-09 16:44:53 · answer #8 · answered by Spellcaster97 2 · 0⤊ 0⤋
2008, basically just stick to the rule of thumb that if it's a year that can be divided by 4 then it's a leap year (like the last one was 2004) every once in a while it skips... but don't worry about that, it won't happen again for a while (I believe it didn't happen in the year 2000 which IS divideable by 4, but for some odd reason which I won't go into, WASN'T a leap year, that happens only every 200 years so it won't happen again in your lifetime), so just go on with the assumption that it's every 4 years. And buy a calendar (for the next year) so if you're still confused you can just go to February for that year and check if it has 28 or 29 days so you know for sure.
2006-08-09 16:51:53 · answer #9 · answered by Kat__hleen 3 · 0⤊ 0⤋
the first 2 statements of yours are correct. Leap years indeed do occur every 4 years, and the year should be divisible by 4. so, if you divide the years by 4, you can easily find out when the next leap year is.
2006-08-09 16:50:50 · answer #10 · answered by Malfoy vs Potter 5 · 0⤊ 0⤋