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Makeshift Parallel Calendar

The MakeShift Parallel Calendar was developed by Chad Himmel in 1992. It is based on a 13 month cycle of 28 days each.
An illustration of the makeshift parallel calendar

Today's date is: 

Pick a date to see the Makeshift equivalent:


The Months:

The months of the MakeShift Parallel Calendar are as follow:

Icon for month of Sweep 1) Sweep
Icon for month of Leap 2) Leap
Icon for month of March 3) March
Icon for month of Ram 4) Ram
Icon for month of Gather 5) Gather
Icon for month of Harbor 6) Harbor
Icon for month of Crawl 7) Crawl
Icon for month of Bear 8) Bear
Icon for month of Nestle 9) Nestle
Icon for month of Turn 10) Turn
Icon for month of Fall 11) Fall
Icon for month of Veer 12) Veer
Icon for month of Wax 13) Wax

History:

The MakeShift Parallel Calendar was developed by Chad Himmel in 1992. It is based on a 13 month cycle of 28 days each (as opposed to the Gregorian system of a 12 month cycle of alternating 30 and 31 days). This is a combination of ideas from the World Calendar and the Perpetual Calendar, which were proposed earlier in the 20th Century and were rejected by the UN and US Congress. These are more consistent and orderly calendars.

Explanation/Notes:

In the MakeShift Parallel Calendar, the first day of each year occurs a Monday, and the first day of each month also occurs on a Monday.

The first day of the year is called Day 0, or Day Not. It is an unnumbered day, occurring the day after Wax 28, which is the last day of the 13th month.

Day Not adjusts the year to account for the 365 days of the year, and is not counted as any day of the week, such as Monday or Tuesday. Therefore, Wax 28 always occurs on a Sunday, and Sweep 1, the first day of the first month, always occurs on a Monday.

Leap Years in the Makeshift Parallel Calendar are determined in the same manner as in the Gregorian Calendar. During a Leap Year in the Makeshift Parallel Calendar, Leap Day occurs on the day after the 28th day of the month Leap, and also is not counted as a day of the week. Therefore, the 28th day of Leap always occurs on a Sunday, and the 1st of March always occurs on a Monday.

Observance:

4-Jan-1999, Monday: informal observance of the mpc initiated (1-Sweep).
2-Jan-2000, Sunday: the last day of the informal observance year (28-Wax).
3-Jan-2000, Monday: the mpc formally began on Day Not of Year Not (0-0-0).
4-Jan-2000, Tuesday: New Year's Day of Year Not (Monday, 1-Sweep-0).