In what years does february have 29 days?
355735
In leap years, but not every 4th year is a leap year:\n\n>>The Rule \n\nAccording to the Gregorian calendar, which is the civil calendar in use today, years evenly divisible by 4 are leap years, with the exception of centurial years that are not evenly divisible by 400. Therefore, the years 1700, 1800, 1900 and 2100 are not leap years, but 1600, 2000, and 2400 are leap years.<<
171415
It is the 267th day of this year. On a leap year it would be the 268th day.
199129
all of them have at least 28. february is the only one limited to 28, unless it is a leap year.
883836
i couldn't tell you about years having the same dates onthe same day, but if you look at february and march, they have the same 28 dates/days for the first 28 days, except on leap years...how do i know.....a leap year mean having to wait an extra day for my birthday... :(  so you usually don't even have to change your claendar to march! spiffy huh?
1060126
Maximum 3 days, but usually 2 days a year. There are only two possibilities for having the three days (maximum):\n\n1. In a normal, non-leap year, if Feb-13 is a Friday then Mar-13 & Nov-13 are also Fridays.\n\n2. In a Leap year, if Jan-13 is a Friday then Apr-13 & Jul-13 are also Fridays.
591347
Feb.22, 1949,  Feb. 22, 1955
196151
Year 2008 is the next leap year, with 29 days in February. February 2008 has five Fridays - it starts and ends on a Friday. Between 1904 and 2096, leap years with same day of week for each date repeat every 28 years which means that the last time February had 5 Fridays was in 1980 and next time will be in 2036.
42308
February needed a holiday.
84324
A widely believed--but possibly erroneous--story has it that February is so short because the Romans borrowed a day from it to add to August. August was originally a 30-day month called Sextilis, but it was renamed to honor the emperor Augustus Caesar, just as July had earlier been renamed to honor Julius Caesar. Naturally, it wouldn't do to have Gus's month be shorter than Julius's, hence the switch.\n\nBut some historians say this is bunk. They say February has always had 28 days, going back to the 8th century BC, when a Roman king by the name of Numa Pompilius established the basic Roman calendar. Before Numa was on the job the calendar covered only ten months, March through December. December, as you may know, roughly translates from Latin as "tenth." July was originally called Quintilis, "fifth," Sextilis was sixth, September was seventh, and so on.\n\nTo meticulous persons such as ourselves, Randy, having the calendar run out in December and not pick up again until March probably seems like a pretty casual approach to timekeeping. However, we must realize that 3,000 years ago, not a helluva lot happened between December and March. The Romans at the time were an agricultural people, and the main purpose of the calendar was to govern the cycle of planting and harvesting.\n\nNuma, however, was a real go-getter-type guy, and when he got to be in charge of things, he decided it was going to look pretty stupid if the Romans gave the world a calendar that somehow overlooked one-sixth of the year. So he decided that a year would have 355 days--still a bit off the mark, admittedly, but definitely a step in the right direction. Three hundred fifty five days was the approximate length of 12 lunar cycles, with lots of leap days thrown in to keep the calendar lined up with the seasons. Numa also added two new months, January and February, to the end of the year. Since the Romans thought even numbers were unlucky, he made seven of the months 29 days long, and four months 31 days long.\n\nBut Numa needed one short, even-numbered month to make the number of days work out to 355. February got elected. It was the last month of the year (January didn't become the first month until centuries later), it was in the middle of winter, and presumably, if there had to be an unlucky month, better to make it a short one.\n\nMany years later, Julius Caesar reorganized the calendar yet again, giving it 365 days. Some say he made February 29 days long, 30 in leap year, and that Augustus Caesar later pilfered a day; others say Julius just kept it at 28. None of this changes the underlying truth: February is so short mainly because it was the month nobody liked much--a judgment with which I heartily concur. Frankly, if the Romans had cut it down to 15 minutes, it wouldn't have bothered me a bit.
128719
Check out this site\nhttp://www.famousbirthdays.com/feb.html
1062594
1735-2105 are years.\nLiving:12349,57960\nDead:1246,780
92160
Because they had to balance a year in a year. If February would have more days, then there'd be more days than a year can hold! I mean, yeah, they could take days out of other months for February, but what would that solve? Nothing. Months are grouped occurding to their season.
160075
To be exact, you have to look at leap years first.\nYears divisible by 100 are not leap years unless they are also divisible by 400. \n2000 was a leap year, 2100 won't be a leap year.\n\nSo every 400 years you get 97 leap years, slightly less that 1/4.\n\nThan means that there are 97 Feb 29th out of (400x365 + 97) days in 400 years.\nSo the probablility of being born on Feb 29 is 97/(400x365 + 97).\n\nEvery other date occurs 400 times in 400 years so the odds of being born on any other day is 400/(400x365 + 97)\n\nAs far as "why does it exist?", every thing that occurs at random has a possiblity of happening. Probabilities just are, they don't need a reason.
453875
In a non leap year, 365 days, there are 31, 536, 000 seconds in a year.  \n\nHowever, the answer you are looking for could be ...12!\n\nJanuary 2nd, February 2nd, March 2nd...etc.
415250
in a 31 day month it would be 129 time\nin a 30 day month it would be 133.3 times\nin a 29 day month it would be 137.9 times (Leap month)\nin a 28 day month it would be 142.8 times  (Feb)
606654
PRecisely 365.24 days. Every four years we have a leap year, but to keep from getting ahead we skip the whole leap year thing once out of every hundred. We might have done so in 2000, I don't remember.
808009
30 days has september\nApril, June, and November\nAll the rest have 31\nExcept for February alone,\nWhich has 28 days, clear?\nExcept on Leap Year, which has 29!\n\nThere's also this trick you can do with your knuckles. Make your hand into a fist and see how the knuckles stick out? January is the top of the first knukle, and then the dip between the two knuckles is February. Continue this until you get to the last knuckle on your hand, which should be July. Start over on the other end of the hand for August, which starts at the top again. All the months that fall on the knuckles are long, and all the months that fall in the dips between the knuckles are short. Cool, eh? =D