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This would need far more than a simple perpetual calendar ...

October 27 2006 at 8:06 AM

Marcus Hanke  (Login mhanke)
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Response to 52 or 53 weeks

A so-called "perpetual" calendar incorporates a mechanical programme for four years; three of which are identical, only the last one being a leap year and different. The correct calculation of years with 52 and those with 53 weeks would need a lot more calculation and mechanics: ONly those years beginning with a thursday (or a wednesday, if it is a leap year) have 53 instead of 52 weeks. This is the case every 28 years, if I calculated correctly. The last 53-weeks year having been 2004, the next won't be before 2032.

Best regards,
Marcus

 
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