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Rainbow Alphabet Calendar

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The Rainbow Alphabet Calendar is a calendar reform concept created by Karl Palmen.

It has 52 rainbow weeks named after the letters of the alphabet 'A' to 'Z' and 'a' to 'z'. The days of the rainbow week are Redday, Orangeday, Yellowday, Greenday, Blueday, Indigoday and Violetday. Week 'Z' also has a Magentaday and so does week 'z' in Rainbow leap years.

The Magentadays ensure that there are exactly 52 rainbow weeks in a year. They cause the rainbow week to move relative to the 7 day week. Reddays occur Rainbow Alphabet Years 2006 to 2010 as follows:

2006Southward SunRedday = Monday
2007Northward SunRedday = Monday Magentaday Z
2007Southward SunRedday = Tuesday Magentaday z (leap day)
2008Northward SunRedday = Wednesday Magentaday Z
2008Southward SunRedday = Thursday
2009Northward SunRedday = Thursday Magentaday Z
2009Southward SunRedday = Friday
2010Northward SunRedday = Friday Magentaday Z
2010Southward SunRedday = Saturday

Palmen says he chose the new year so that the Equinoxes occur in week 'M' and 'm' and the solstices in weeks 'Z' and 'z'. The northward equinox occurred on Orangeday M this year.

Leap Magentaday occurs in the year before a Gregorian leap year. Dates followed by a dot are one day later in the Gregorian calendar before or on a February 29.

Historic calendarEdit

Below is a conversion table to and from the Gregorian calendar:

      Northward Sun                   Southward Sun

  RE OR YE GR BL IN VI            RE OR YE GR BL IN VI
A 25.26.27.28.29.30.31. Dec     a 26 27 28 29 30  1 02 Jul
B  1.02.03.04.05.06.07. Jan     b 03 04 05 06 07 08 09 Jul
C 08.09.10.11.12.13.14. Jan     c 10 11 12 13 14 15 16 Jul
D 15.16.17.18.19.20.21. Jan     d 17 18 19 20 21 22 23 Jul
E 22.23.24.25.26.27.28. Jan     e 24 25 26 27 28 29 30 Jul
F 29.30.31. 1.02.03.04. Feb     f 31  1 02 03 04 05 06 Aug
G 05.06.07.08.09.10.11. Feb     g 07 08 09 10 11 12 13 Aug
H 12.13.14.15.16.17.18. Feb     h 14 15 16 17 18 19 20 Aug
I 19.20.21.22.23.24.25. Feb     i 21 22 23 24 25 26 27 Aug
J 26.27.28. 1 02 03 04 Mar      j 28 29 30 31  1 02 03 Sep
K 05 06 07 08 09 10 11 Mar      k 04 05 06 07 08 09 10 Sep
L 12 13 14 15 16 17 18 Mar      l 11 12 13 14 15 16 17 Sep
M 19 20 21 22 23 24 25 Mar      m 18 19 20 21 22 23 24 Sep
  RE OR YE GR BL IN VI            RE OR YE GR BL IN VI
N 26 27 28 29 30 31  1 Apr      n 25 26 27 28 29 30  1 Oct
O 02 03 04 05 06 07 08 Apr      o 02 03 04 05 06 07 08 Oct
P 09 10 11 12 13 14 15 Apr      p 09 10 11 12 13 14 15 Oct
Q 16 17 18 19 20 21 22 Apr      q 16 17 18 19 20 21 22 Oct
R 23 24 25 26 27 28 29 Apr      r 23 24 25 26 27 28 29 Oct
S 30  1 02 03 04 05 06 May      s 30 31  1 02 03 04 05 Nov
T 07 08 09 10 11 12 13 May      t 06 07 08 09 10 11 12 Nov
U 14 15 16 17 18 19 20 May      u 13 14 15 16 17 18 19 Nov
V 21 22 23 24 25 26 27 May      v 20 21 22 23 24 25 26 Nov
W 28 29 30 31  1 02 03 Jun      w 27 28 29 30  1 02 03 Dec
X 04 05 06 07 08 09 10 Jun      x 04 05 06 07 08 09 10 Dec
Y 11 12 13 14 15 16 17 Jun      y 11 12 13 14 15 16 17 Dec
Z 18 19 20 21 22 23 24 Jun      z 18 19 20 21 22 23 24 Dec
  RE OR YE GR BL IN VI            RE OR YE GR BL IN VI

Annual Magentaday Leap Magentaday Magentaday Z = June 25th Magentaday z = Dec 25th

Current calendarEdit

   Northern Sun                    Southern Sun

  RE OR YE GR BL IN VI            RE OR YE GR BL IN VI            
A 27 28 29 30 31  1 02 Mar/Apr  a 25 26 27 28 29 30  1 Sep/Oct
B 03 04 05 06 07 08 09 Apr      b 02 03 04 05 06 07 08 Oct
C 10 11 12 13 14 15 16 Apr      c 09 10 11 12 13 14 15 Oct
D 17 18 19 20 21 22 23 Apr      d 16 17 18 19 20 21 22 Oct
E 24 25 26 27 28 29 30 Apr      e 23 24 25 26 27 28 29 Oct
F  1 02 03 04 05 06 07 May      f 30 31  1 02 03 04 05 Oct/Nov
G 08 09 10 11 12 13 14 May      g 06 07 08 09 10 11 12 Nov
H 15 16 17 18 19 20 21 May      h 13 14 15 16 17 18 19 Nov
I 22 23 24 25 26 27 28 May      i 20 21 22 23 24 25 26 Nov
J 29 30 31  1 02 03 04 May/Jun  j 27 28 29 30  1 02 03 Nov/Dec
K 05 06 07 08 09 10 11 Jun      k 04 05 06 07 08 09 10 Dec
L 12 13 14 15 16 17 18 Jun      l 11 12 13 14 15 16 17 Dec
M 19 20 21 22 23 24 25 Jun      m 18 19 20 21 22 23 24 Dec
  RE OR YE GR BL IN VI            RE OR YE GR BL IN VI            
N 26 27 28 29 30  1 02 Jun/Jul  n 25 26 27 28 29 30 31 Dec
O 03 04 05 06 07 08 09 Jul      o  1 02 03 04 05 06 07 Jan
P 10 11 12 13 14 15 16 Jul      p 08 09 10 11 12 13 14 Jan
Q 17 18 19 20 21 22 23 Jul      q 15 16 17 18 19 20 21 Jan
R 24 25 26 27 28 29 30 Jul      r 22 23 24 25 26 27 28 Jan
S 31  1 02 03 04 05 06 Jul/Aug  s 29 30 31  1 02 03 04 Jan/Feb
T 07 08 09 10 11 12 13 Aug      t 05 06 07 08 09 10 11 Feb
U 14 15 16 17 18 19 20 Aug      u 12 13 14 15 16 17 18 Feb
V 21 22 23 24 25 26 27 Aug      v 19 20 21 22 23 24 25 Feb
W 28 29 30 31  1 02 03 Aug/Sep  w 26 27 28 then as below …
X 04 05 06 07 08 09 10 Sep        RE OR YE GR BL IN VI            
Y 11 12 13 14 15 16 17 Sep      
Z 18 19 20 21 22 23 24 Sep  
  RE OR YE GR BL IN VI                
    
Common Years:                     Leap Years:
  RE OR YE GR BL IN VI            RE OR YE GR BL IN VI            
w 26 27 28  1 02 03 04 Feb/Mar  w 26 27 28 29  1 02 03 Feb/Mar
x 05 06 07 08 09 10 11 Mar      x 04 05 06 07 08 09 10 Mar
y 12 13 14 15 16 17 18 Mar      y 11 12 13 14 15 16 17 Mar
z 19 20 21 22 23 24 25 26 Mar   z 18 19 20 21 22 23 24 25 26 Mar
  RE OR YE GR BL IN VI PU         RE OR YE GR BL IN VI PU MA

Rainbow Week:
1 RE Redday
2 OR Orangeday
3 YE Yellowday
4 GR Greenday
5 BL Blueday
6 IN Indigoday
7 VI Violetday
8 PU Purpleday (week z only)
9 MA Magentaday (week z in leap years only)

Example dates: May 1 = Redday big F August 24 = Greenday big V December 25 = Redday little n (Noel) January 1 = Redday little o February 17 = Indigoday little u

External linksEdit

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