Quepennura Leap Week Calendar
Quarter
How to Divide One Year into Four in Quepennura Leap Week Calendar
As you see the page Calendar, the period from December 26 to December 32 is the leap week, which is added in one leap year. This means that the seven-day difference is between one common year (364 days) and one leap year (371 days).
Usually it may be difficult to divide one year into four under these conditions.
However, Quepennura Leap Week Calendar make it POSSIBLE by doing the following:
in one COMMON year, to focus on the number of the DAYS in each month
in one LEAP year, to focus on the number of the WEEKS in each month
By the way, weeks are counted with Thursdays in the same way as ISO 8601. For example,
January has four Thursdays (Date 4, 11, 18 and 25), and it means that January has four weeks.
February has five Thursdays (Date 1, 8, 15, 22, and 29), and it means that February has five weeks.
Doing like this solves some general problems which occur in most calendars.
Type A (Recommended)
This type divides one year into four like these:
March, April and May
4 weeks (March) + 5 weeks (April) + 4 weeks (May) = 13 weeks
31 days (March) + 31 days (April) + 31 days (May) = 93 days
June, July and August
4 weeks (June) + 5 weeks (July) + 4 weeks (August) = 13 weeks
31 days (June) + 30 days (July) + 31 days (August) = 92 days
September, October and November
5 weeks (September) + 4 weeks (October) + 4 weeks (November) = 13 weeks
31 days (September) + 31 days (October) + 31 days (November) = 93 days
December, January and February
4 weeks (December) + 4 weeks (January) + 5 weeks (February) = 13 weeks
32 days (December) + 31 days (January) + 30 days (February) = 93 days
There are three points to tell you.
We can regard any quarter as the 1st because the number of the weeks or the days is (almost) equal.
The beginning month of each quarter includes equinox or solstice.
The names of the months, March June, September and December, are in the calendar name "Quepennura".
Type B (NOT Recommended)
This type divides one year into four like these:
January, February and March
4 weeks (January) + 5 weeks (February) + 4 weeks (March) = 13 weeks
31 days (January) + 30 days (February) + 31 days (March) = 92 days
April, May and June
5 weeks (April) + 4 weeks (May) + 4 weeks (June) = 13 weeks
31 days (April) + 31 days (May) + 31 days (June) = 93 days
July, August, September
5 weeks (July) + 4 weeks (August) + 5 weeks (September) = 14 weeks
30 days (July) + 31 days (August) + 31 days (September) = 92 days
October, November, December
4 weeks (October) + 4 weeks (November) + 4 weeks (December) = 12 weeks
31 days (October) + 31 days (November) + 32 days (December) = 94 days
However, we need to do the following things in order to use them actually. In addition, this makes it IMPOSSIBLE to regard the quarter from October to December as the 1st one because the quarter depends on the previous one.
in one COMMON year, to regard the 5th week of September as the 0th week of October.
By doing it, all quarters will have 13 weeks.
in one LEAP year, to regard October 1 as September 32.
By doing it, all quarters will have 93 days except the quarter from January to March.
Type C (NOT Recommended)
This type divides one year into four like these:
May, June and July
4 weeks (May) + 4 weeks (June) + 5 weeks (July) = 13 weeks
31 days (May) + 31 days (June) + 30 days (July) = 92 days
August, September and October
4 weeks (August) + 5 weeks (September) + 4 weeks (October) = 13 weeks
31 days (August) + 31 days (September) + 31 days (October) = 93 days
November, December and January
4 weeks (November) + 4 weeks (December) + 4 weeks (January) = 12 weeks
31 days (November) + 32 days (December) + 31 days (January) = 94 days
February, March and April
5 weeks (February) + 4 weeks (March) + 5 weeks (April) = 14 weeks
30 days (February) + 31 days (March) + 31 days (April) = 92 days
However, we need to do the following things in order to use them actually. In addition, this makes it IMPOSSIBLE to regard the quarter from February to April as the 1st one because the quarter depends on the previous one.
in one COMMON year, to regard the 1st week of February as the 5th week of January.
By doing it, all quarters will have 13 weeks.
in one LEAP year, to regard January 31 as February 0.
By doing it, all quarters will have 93 days except the quarter from May to July.