10 Months and 10 Weeks

Dear Calendar People

I thought of the idea of a calendar where each year has 10 months, which start at about the same moon phase within each year and 10 weeks, which begin on the same day of week within each year.

The ten months would alternate between 29 and 30 days, except that one month normally of 29 days has a day added in a leap year.

I’ve found a rather elegant calendar of this type, in which the months and weeks begin on the following Gregorian dates:

Month 1: Sep 5  (30 days)

Month 2: Oct 5  (29 days)

Month 3: Nov 3  (30 days)

Month 4: Dec 3  (29 days)

Month 5:  Jan 1  (30 days)

Month 6: Jan 31 (29 or 30 days)

Month 7: Mar 1  (30 days)

Month 8: Mar 31 (29 days)

Month 9: Apr 29 (30 days)

Month 10: May 29  (29 days)

Week 1: Jun 27

Week 2: Jul 4

Week 3: Jul 11

Week 4: Jul 18

Week 5: Jul 25

Week 6: Aug 1

Week 7: Aug 8

Week 8: Aug 15

Week 9: Aug 22

Week 10: Aug 29

Month 6  gets a 30^th day in a leap year and that 30^th day occurs on Feb 29. Hence each date of this calendar’s year occurs on the same date of the Gregorian year every year.

Each of the 10 calendar weeks begins on a Doomsday and so does Month 1.

Month 5 begins on January 1, 153 days after Week 6 on August 1 in turn 153 days after Month 7 on March 1.

Today is Day 18 of Month 10. In two weeks time, it will be Day 3 of Week 1.

Karl

Day 18 Month 10

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