When will we have to add or remove a day from the Gregorian calendar?
953230
In the Gregorian calendar which is currently in use in most countries, there is a leap year every year divisible by four except for years which are both divisible by 100 and not divisible by 400. Therefore, the year 2000 will be a leap year, but the years 1700, 1800, and 1900 were not. The complete list of leap years in the first half of the 21st century is therefore 2000, 2004, 2008, 2012, 2016, 2020, 2024, 2028, 2032, 2036, 2040, 2044, and 2048. \n\nIn the Gregorian calendar, 97 years out of every 400 are leap years, giving the total number of days in 400 years as:\n\n 400 * 365 +100 - 3 = 146, 097\n\n\nHope this helps also check out this website.
86721
To be exact, it will be Monday, December 31, 2012, at least in the continental United States, 2,525 days from the posting of this question.\nhttp://www.morgandavis.net/tools/calc/daycalc/calc.cgi\n\nWe can do the math ourselves as well.  6 years from now would be 2190 (6x365) days plus the leap year day that is added in 2008, so it is 2191 days until February 1, 2012.  There would be 365 less 31 days, plus 1 day, as 2012 is another leap year, until the end of 2012.\n\nSo, we add 2191 days to 335 to get 2,526 to get to January 1, 2013, hence 2,525 days lands us in 2012.
421650
No because that's when we changed to the Gregorian calender. As previous measurements of time didn't allow for the fact that there are 365 and 1/4 days in a year plus 11 minutes, dates were becoming out of synchronization. Thus in 1582 the system adopted by Pope Gregory XIII was made law in Britain and it's colonies and is now in worldwide use. This meant 'jumping' from 5th October to 14th October to make up for the discrepancy and caused the 'Missing 9 Days' riots as people thought that they would die nine days sooner than they would have done if the calender had not been amended. This is why no-one was born between those dates as they did not exist.
1178273
I do, I do.  Thanks for your wishes.  The only problem is is that after today the days start getting shorter again until we get that "short" day in December.
381210
yesterday it was right around 1 am.\n\nbecause it was:\n01:02:03 04/05/06\n\nWon't happen again for another 1000 years.
1028919
B.\n\nBut it is not actually correct.  %'s are generally figured on a standard 360 day calendar year, this problem uses 365
39183
Yahoo calendar..that is until Google finally comes up with one@
105862
I don't see how they can do away with them. It is a fact that the time is not running exactly to the second every year. If they did away with them they would eventually have to adjust something or atomic time would be different then local time.
842314
When there was a conversion from the Julian calendar to the Gregorian calendar, there had to be a change made to account for the year being out of synch with the actual seasons.  The Julian calendar accounted for a solar year equivalent to 365.25 days, but it is closer to 365.2422 days.  As a result, we were adding too many days.  The Gregorian calendar instituted a change where 3 out of every 4 centuries would *not* be leap years.\n\nThe reform happened in 1582.  Ten days were omitted from the calendar, and it was decreed that the day following (Thursday) October 4, 1582 (which is October 5, 1582, in the old calendar) would thenceforth be known as (Friday) October 15, 1582.\n\nThe Gregorian Calendar was adopted immediately upon the promulgation of Pope Gregory's decree in the Catholic countries of Italy, Spain, Portugal and Poland, and shortly thereafter in France and Luxembourg. During the next year or two most Catholic regions of Germany, Belgium, Switzerland and the Netherlands came on board. Hungary followed in 1587. The rest of the Netherlands, Denmark, Germany and Switzerland made the change during 1699 to 1701. By the time the British were ready to go along with the rest of Europe, the old calendar had drifted off by one more day, requiring a correction of eleven days, rather than ten. \n\nThe Gregorian Calendar was adopted in Britain (and in the British colonies) in 1752, with (Wednesday) September 2, 1752, being followed immediately by (Thursday) September 14, 1752.\n\nI think this must be the year that you are referring to... 1752.
341188
Technically, the Pope is in charge of the calendar for all of Christianity.  Pope Gregory altered the calendar and added leap days.  Since this was after the Great Schism, the Orthodox have not updated their calendar from the Julian system.  It means that the days move and it triggers differences in the date for Pascha which is after the 20th of March on the first Sunday on or after the fourteenth day of the Paschal moon.  It is the March 20th part that triggers the difference.  Additionally, the Orthodox currently interpret a particular passage from the bulletins at Nicaea in such a way that it further complicates the calculation.
147573
Try timeanddate.com - click on Calendar Customizer.
411023
b. Not allowed until the next day
775479
Julian dates are dates as per Julius Ceasar's calendar\nGregorian = according to Pope Gregory\nthe YYYYMMDD is only a display thing for computer systems\n\nhowever try this link for explanations and conversions\n\nhttp://www.geocities.com/atkuala/astro/cal_conversion.html
844386
Its not set every year. its the third thursday of november. this year, its November 23.
390058
i see what you mean...in case the night was day and September was January the earth would have to turn Clockwise rather that counter clockwise.... and it would have to turn ccw around the sun too....but there is nothing in earth's motion that sets the days of the weak...so today would be just what ever the calender says....Saturday in this case. :D
426038
never. I'm allotted personal time for the calendar year.\nI just say that I wont be in today. It's personal.
420391
It's normally April 15. This year, it's April 17 because that's the first weekday.  It just has to be postmarked by then.