December can have five Sundays, Mondays, and Tuesdays only in specific years. This occurs when December 1st falls on a Sunday, making the Sundays fall on the 1st, 8th, 15th, 22nd, and 29th, while Mondays and Tuesdays also align to allow for five occurrences. This scenario happens approximately once every 28 years in the Gregorian calendar, with the next occurrence in 2030.
A month can contain 5 Sundays, 5 Mondays, and 5 Tuesdays only if it has at least 29 days. This situation occurs in months with 31 days when the month starts on a Sunday, Monday, or Tuesday. Therefore, it can happen once or twice a year, depending on the calendar configuration.
there 5 sundays,mondays,saturdays in every 200 years
That can only happen when December starts on a Sunday. That happens every 5, 6 or 11 years. In the past 50 years it happened in: 1968 1974 1985 1991 1996 2002 2013 The next time will be in 2019, 6 years after 2013.
A December can have 5 Saturdays, 5 Sundays, and 5 Mondays if December 1st falls on a Saturday. This arrangement occurs in leap years, specifically when December 1st is a Saturday. Since December has 31 days, it includes five occurrences of each of those days in that scenario. Thus, this specific occurrence happens only in certain years.
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.
The odds are exactly 14.5%, which makes the average frequency once per 6.9 years.
Every 5, 6, or 11 years, depending on how the leap years fall. August had this configuration in 1982, 1993, 1999, 2004, and 2010. Next three times will be in 2021, 2027 and 2032.
4 years
Never.
October 2011, December 2012, March 2014 for starters. In other words, how often does a 31-day month begin on a Saturday? Fairly often.
Whenever December begins on a Saturday, which happens 4 times every 28 years, in a 6-5-6-11 pattern. December had this calendar in 1984, 1990, 2001 and 2007, and it will recur in 2012, 2018 and 2029.
Over the very long average, once for every seven years. And it's "often".