there 5 sundays,mondays,saturdays in every 200 years
4 years
Over the very long average, once for every seven years. And it's "often".
The month of July has 5 Saturdays and 5 Sundays zerotimes in 2012.
About twice each year
there 5 sundays,mondays,saturdays in every 200 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.
4 years
Never.
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.
Over the very long average, once for every seven years. And it's "often".
The odds are exactly 14.5%, which makes the average frequency once per 6.9 years.
once every 365 years!
October 2011, December 2012, March 2014 for starters. In other words, how often does a 31-day month begin on a Saturday? Fairly often.
Sitting (meeting) hours of the House of Commons2.30-10.30pm on Mondays and Tuesdays, 11.30am-7.30pm on Wednesdays, 10.30am-6.30pm on Thursdays and 9.30am-3pm on sitting Fridays. Sitting (meeting) hours for Westminster Hall debates9.30am-2pm on Tuesdays, 9.30-11.30am and 2.30-5pm on Wednesdays and 2.30-5.30pm on Thursdays.
25 times
Exactly 14% of all Decembers have five of each of Fridays, Saturdays and Sundays.