It"s more facility than that as result of leap years among other things. Check out J.H. Conway"s doomsday preeminence where all your questions have to be answered in complete detail.

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Mostly, in cycles the 6, 11, and 11 years. Leap years only repeat every 28 years. Check out http://wiki.answers.com/Q/How_often_in_years_do_calendars_repeat_with_the_same_day-date_combinations

All relies on the year the starts an initial birthday ~ you been born. If her birthday beginning on exact same day , very same date, same month. It will certainly take 5 years, 6 year or 11 year which will carry you come your initial day that birthday and also the sequence never change. Sequence (11 6 5 6 11 6 5 6 11) all depends on which years sequence(5 6 11 6 5 6 11 6 5)or(6 5 6 11 6 5 6 11 6) you start your sequence, yet it never change.You deserve to test it yourself and see the consistency of the succession birthday, exact same day of the week.

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offered a day of the week and the work of the month, what is the variety of time in ~ which it will uniquely clues a single date?
number of Tuesdays in 5 consecutive calendar years taken together is precisely 260. Which work of the mainly was first Jan. That the very first of 5 years?

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