This happens any time that July 1st falls on a Friday. There is a popular piece of email that claims this event is so rare it happens only once in 823 years. This is absurd, and is a way of poking fun at people who give in too easily to what they read on-line. In years which July 1st falls on a Friday, Christmas always falls on a Sunday.
You know from casual observation that years begin on different days. January 1 2010 was a Friday, January 1 2011 was a Saturday, and January 1 2012 will be a Sunday. 2012 is a "leap year" (really February 29 is an intercalary day), but the day is not added until the end of February. After a year containing an intercalary day, the next January 1 skips ahead two weekdays. January 1 of 2013 will be Tuesday, and so on. The rest of the year follows along with regularity. A little casual figuring will show you that Friday, July 1 will happen 5 times between 2/23/11 and the year 2040. Hardly a breathtaking novelty. Doubt everything.
Gaps between such days are usually 5, 6 or 11 years, and the pattern of gaps will change when you have those infrequent changes to "leap years" that serve to keep the Julian calendar in line with the sun.
Ordinarily the gaps will follow a repeating pattern of years like this:
6
5
6
11
6
5
6
11
actually 2005 had 5 Fridays Saturdays and Sundays in July
2011 2016 2022 2033 2039
The month of July has 5 Saturdays and 5 Sundays zerotimes in 2012.
More like every 28 years, I think.
Why 5 Fridays, 5 Saturdays and 5 Sundays don't occur every 823 yearsMore About Special DatesDate Pattern CalculatorSpecial Calendar Dates10/10/10, October 10, 201011/11/11, November 11, 2011The 823 year mythThe Truth is…The first three weekdays of any 31-day month are repeated 5 times within that month. So, any month that has 31 days and begins on a Friday has 5 Fridays, 5 Saturdays, and 5 Sundays. And this happens much more often than every 823 years. Have a look at our calendars and take it to the test!Proof in cold print: July 2011 and July 2834 are not even the same.Repeating CalendarsThe next time that the 2011 calendar repeats itself is in the year 2022, which is only 11 years later. What's more, a calendar month that contains 5 Fridays, 5 Saturdays and 5 Sundays occurs nearly every year: Both July 2011 and March 2013 have 5 Fridays, Saturdays and Sundays. The next July with same days as July 2011 is July 2016. It does not repeat after 823 years at allEven the claim that the year 2834 has the same calendar as the year 2011 is false (see picture). For instance, July 2011 has 5 Fridays, Saturdays and Sundays. 823 years later, July 2834 has 5 Saturdays, Sundays and Mondays. That is a 5th Monday instead of a 5th Friday.Variations of the urban myth:This year July has 5 Fridays 5 Saturdays and 5 Sundays. This happens once every 823 years. This is called money bags.This year, July has 5 Fridays, 5 Saturdays and 5 Sundays. This happens only once every 823 years.This year October will have 5 Sundays, 5 Mondays and 5 Saturdays. This happens only every 823 years.2010: October will have 5 Sundays, 5 Mondays & 5 Saturdays which only happens every 823 yearsOctober 2010 has 5 Fridays, 5 Saturdays and 5 Sundays. Only happens every 823 years…How recurring calendar months workEvery year has 7 months with 31 days. Each of these 7 months has three weekdays of which there are 5. There are 7 different days a month can start on. So on average, over time, each combination happens once yearly. But for each individual year, there are only 6 of 7 combinations, and two 31-day months start on the same weekday. In a common/regular year, January and October look the same. In a leap year, January and July look the same.5 of the same day in one month in 2011Days that occur 5 times, on these dates:1 / 8 / 15 / 222 / 9 / 16 / 233 / 10 / 17 / 2431 day month29th of month30th of month31st of monthCommentsJanuary 20115 Saturdays5 Sundays5 MondaysSame as OctoberMarch 20115 Tuesdays5 Wednesdays5 ThursdaysMay 20115 Sundays5 Mondays5 TuesdaysJuly 20115 Fridays5 Saturdays5 SundaysAugust 20115 Mondays5 Tuesdays5 WednesdaysOctober 20115 Saturdays5 Sundays5 MondaysSame as JanuaryDecember 20115 Thursdays5 Fridays5 SaturdaysNot occurring in 2011: A month with 5 Wednesdays, 5 Thursdays, 5 Fridays5 of the same day in one month in 2012Days that occur 5 times, on these dates:1 / 8 / 15 / 222 / 9 / 16 / 233 / 10 / 17 / 2431 day month29th of month30th of month31st of monthCommentsJanuary 20125 Sundays5 Mondays5 TuesdaysSame as JulyMarch 20125 Thursdays5 Fridays5 SaturdaysMay 20125 Tuesdays5 Wednesdays5 ThursdaysJuly 20125 Sundays5 Mondays5 TuesdaysSame as JanuaryAugust 20125 Wednesdays5 Thursdays5 FridaysOctober 20125 Mondays5 Tuesdays5 WednesdaysDecember 20125 Saturdays5 Sundays5 MondaysNot occurring in 2012: A month with 5 Fridays, 5 Saturdays, 5 Sundays
actually 2005 had 5 Fridays Saturdays and Sundays in July
Never.
This happens in any 31-day month starting on Friday (such as July 2005).
According to my desktop calendar, July will have five Fridays and Saturdays (and even some Thursdays) in 2016, 2021, 2022, 2027,2032, 2033, etc... If you look at http://www.timeanddate.com/calendar/monthly.html?year=2021&month=7&country=1 you will see that 2021, 2027, 2032 do not have 5 Sundays. The other years 2016, 2022, 2033 do have 5 Fridays, Saturdays, and Sundays. You are little confused since your first parahraph discusses Fridays and Saturdays, in which case 2021 and 2022 do indead have 5 Fridays and 5 Saturdays in July. In paragraph two above, you begin talking about Sundays and which years in which July will 5 each of Fridays, Saturdays and Sundays. Every month with 31 days will have 5 instances of the first 3 days in the month. This will repeat in a 5-6-5-11 year cycle and then repeat. So it should be 2016, 2022, 2033, 2039, 2044, 2050, 2056 - don't forget to consider leap year which will cause a 1 day shift.
2011 2016 2022 2033 2039
The month of July has 5 Saturdays and 5 Sundays zerotimes in 2012.
Exactly 14.25% of all July 23rds are Wednesdays. 14% are Sundays, 14.5% are Mondays, 14.25% are Tuesdays, 14.25% are Wednesdays, 14.5% are Thursdays, 14% are Fridays, and 14.5% are Saturdays.
Prior to this year, July had five Fridays and five Saturdays in 2010.
More like every 28 years, I think.
October had 5 Fridays and Saturdays and Sundays in the year 2010 and will have it again in 2021 than 2027, 2032, 2038 , all the months with 31 days in them have the same pattern 11 years than 6 years than 5 years than 6years than 11 than 6 than 5 than 6 doesn't matter where you start at 5 or 6 or 11 just do 4 in a row and it will add up to 28 years October has 5 Fridays, Saturdays and Sundays. 5 times starting in 2010 , 2021, 2027,2032 and 2038 December will have them in 2017,2023,2028,2034 and 2045 January is 2010, 2016,2021,2027 and 2038 march is 2013,2019,2024,2030,2041 may is 2015,2020,2026,2037 and 2043 and the last month with 31 days in it, July has them on 2011,2016,2022,2033,and2039
2011, 2016 (leap year), 2022, 2033, 2039, 2044 (leap year), 2050, 2061, 2067, 2072 (leap year), 2078, 2089, 2095, 2101, 2107, 2112 (leap year), 2118, 2129
Why 5 Fridays, 5 Saturdays and 5 Sundays don't occur every 823 yearsMore About Special DatesDate Pattern CalculatorSpecial Calendar Dates10/10/10, October 10, 201011/11/11, November 11, 2011The 823 year mythThe Truth is…The first three weekdays of any 31-day month are repeated 5 times within that month. So, any month that has 31 days and begins on a Friday has 5 Fridays, 5 Saturdays, and 5 Sundays. And this happens much more often than every 823 years. Have a look at our calendars and take it to the test!Proof in cold print: July 2011 and July 2834 are not even the same.Repeating CalendarsThe next time that the 2011 calendar repeats itself is in the year 2022, which is only 11 years later. What's more, a calendar month that contains 5 Fridays, 5 Saturdays and 5 Sundays occurs nearly every year: Both July 2011 and March 2013 have 5 Fridays, Saturdays and Sundays. The next July with same days as July 2011 is July 2016. It does not repeat after 823 years at allEven the claim that the year 2834 has the same calendar as the year 2011 is false (see picture). For instance, July 2011 has 5 Fridays, Saturdays and Sundays. 823 years later, July 2834 has 5 Saturdays, Sundays and Mondays. That is a 5th Monday instead of a 5th Friday.Variations of the urban myth:This year July has 5 Fridays 5 Saturdays and 5 Sundays. This happens once every 823 years. This is called money bags.This year, July has 5 Fridays, 5 Saturdays and 5 Sundays. This happens only once every 823 years.This year October will have 5 Sundays, 5 Mondays and 5 Saturdays. This happens only every 823 years.2010: October will have 5 Sundays, 5 Mondays & 5 Saturdays which only happens every 823 yearsOctober 2010 has 5 Fridays, 5 Saturdays and 5 Sundays. Only happens every 823 years…How recurring calendar months workEvery year has 7 months with 31 days. Each of these 7 months has three weekdays of which there are 5. There are 7 different days a month can start on. So on average, over time, each combination happens once yearly. But for each individual year, there are only 6 of 7 combinations, and two 31-day months start on the same weekday. In a common/regular year, January and October look the same. In a leap year, January and July look the same.5 of the same day in one month in 2011Days that occur 5 times, on these dates:1 / 8 / 15 / 222 / 9 / 16 / 233 / 10 / 17 / 2431 day month29th of month30th of month31st of monthCommentsJanuary 20115 Saturdays5 Sundays5 MondaysSame as OctoberMarch 20115 Tuesdays5 Wednesdays5 ThursdaysMay 20115 Sundays5 Mondays5 TuesdaysJuly 20115 Fridays5 Saturdays5 SundaysAugust 20115 Mondays5 Tuesdays5 WednesdaysOctober 20115 Saturdays5 Sundays5 MondaysSame as JanuaryDecember 20115 Thursdays5 Fridays5 SaturdaysNot occurring in 2011: A month with 5 Wednesdays, 5 Thursdays, 5 Fridays5 of the same day in one month in 2012Days that occur 5 times, on these dates:1 / 8 / 15 / 222 / 9 / 16 / 233 / 10 / 17 / 2431 day month29th of month30th of month31st of monthCommentsJanuary 20125 Sundays5 Mondays5 TuesdaysSame as JulyMarch 20125 Thursdays5 Fridays5 SaturdaysMay 20125 Tuesdays5 Wednesdays5 ThursdaysJuly 20125 Sundays5 Mondays5 TuesdaysSame as JanuaryAugust 20125 Wednesdays5 Thursdays5 FridaysOctober 20125 Mondays5 Tuesdays5 WednesdaysDecember 20125 Saturdays5 Sundays5 MondaysNot occurring in 2012: A month with 5 Fridays, 5 Saturdays, 5 Sundays