Victor's Turns & Blocks - types of quarters and years
This email originated from outside ECU.
Dear Victor and Calendar People
Victor suggested using blocks of 161 turns each to form a calendar. In each block, the turns alternate between 1 day and 2 days, so that the first and last turn of each block has 1 day. This gives each block 482 days. Years are made up of four quarters of
61 turns each.
I classified the quarters into four types and these form 13 types of year. In this note, I list the 13 types of year and the days of the block each of these years begin. But first, I define the 4 types of quarters.
Quarter type A begins and ends with a 1-day turn (within 1 block) 91 days
Quarter type B begins and ends with a 2-day turn (within 1 block) 92 days
Quarter type C begins with a 1-day turn and ends with a 2-day turn (across 2 blocks) 91 days
Quarter type D begins with a 2-day turn and ends with a 1-day turn (across 2 blocks) 91 days
The 13 year types followed by the day(s) of the block each begins are shown next.
ABCA odd 1 to 39
ADBA odd 41 to 79
ADBC odd 81 to 99
AABC 101 only
CABC odd 103 to 139
CADB odd 141 to 161
BADB even 2 to 38 (leap year)
BAAB 40 only (leap year)
BCAB even 42 to 78 (leap year)
BCAD even 80 to 100
DBAD even 102 to 138
DBAA 140 only
DBCA even 142 to 160
Years with 2 Bs are leap years and years with 1 B are common years.