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The Tree Calendar

You have chosen 2021. If this is not the year you want then please use the links above to get to the correct year.

The tree calendar has various incarnations but mine is based on the Celtic Tree Calendar by Linda Kerr which may be found at http://www.auburn.edu/~kerrlin/treecal.html in which the months follow the lunations and February 2, or Imbolc, always falls on the Rowan moon, the 2nd lunation.

I also had help from http://www.timeanddate.com/ and http://www.hermetic.ch/cal_sw/ve/ve.htm as references for lunation times.

Various pages at http://en.wikipedia.org/ helped me write the algorithms for figuring out when the lunations and solstices are.

The programming of this calendar was done in perl (href=http://www.perl.org/) and the text editor used was syn (http://syn.sourceforge.net/).

In Internet Explorer 6 a print preview shows that each printed page has exactly 2 boxes on it, so you should be able to print the calendar for any year and cut out the months without needing to cellotape together any months that were split across pages.

Jimi-Carlo Bukowski-Wills

2021
Tree Calendar
Days Apart
MoondayTirsdayOdinsdayThorsdayFriggasdayLokidaySundayMooneve
Birch
MoondayTirsdayOdinsdayThorsdayFriggasdayLokidaySundayMooneve
07
Midwinter
08
22/12/2020
09
23/12/2020
10
24/12/2020
11
Xmas
12
26/12/2020
13
27/12/2020
14
28/12/2020
15
29/12/2020
16
30/12/2020
17
31/12/2020
18
1/1/2021
19
2/1/2021
20
3/1/2021
21
4/1/2021
22
5/1/2021
23
6/1/2021
24
7/1/2021
25
8/1/2021
26
9/1/2021
27
10/1/2021
28
11/1/2021
29
12/1/2021
30
13/1/2021
Rowan
MoondayTirsdayOdinsdayThorsdayFriggasdayLokidaySundayMooneve
01
14/1/2021
02
15/1/2021
03
16/1/2021
04
17/1/2021
05
18/1/2021
06
19/1/2021
07
20/1/2021
08
21/1/2021
09
22/1/2021
10
23/1/2021
11
24/1/2021
12
25/1/2021
13
26/1/2021
14
27/1/2021
15
28/1/2021
16
29/1/2021
17
30/1/2021
18
31/1/2021
19
1/2/2021
20
In Milk
21
3/2/2021
22
4/2/2021
23
5/2/2021
24
6/2/2021
25
7/2/2021
26
8/2/2021
27
9/2/2021
28
10/2/2021
29
11/2/2021
Ash
MoondayTirsdayOdinsdayThorsdayFriggasdayLokidaySundayMooneve
01
12/2/2021
02
13/2/2021
03
14/2/2021
04
15/2/2021
05
16/2/2021
06
17/2/2021
07
18/2/2021
08
19/2/2021
09
20/2/2021
10
21/2/2021
11
22/2/2021
12
23/2/2021
13
24/2/2021
14
25/2/2021
15
26/2/2021
16
27/2/2021
17
28/2/2021
18
1/3/2021
19
2/3/2021
20
3/3/2021
21
4/3/2021
22
5/3/2021
23
6/3/2021
24
7/3/2021
25
8/3/2021
26
9/3/2021
27
10/3/2021
28
11/3/2021
29
12/3/2021
30
13/3/2021
Alder
MoondayTirsdayOdinsdayThorsdayFriggasdayLokidaySundayMooneve
01
14/3/2021
02
15/3/2021
03
16/3/2021
04
17/3/2021
05
18/3/2021
06
19/3/2021
07
20/3/2021
08
21/3/2021
09
Equinox
10
23/3/2021
11
24/3/2021
12
25/3/2021
13
26/3/2021
14
27/3/2021
15
28/3/2021
16
29/3/2021
17
30/3/2021
18
31/3/2021
19
1/4/2021
20
2/4/2021
21
3/4/2021
22
4/4/2021
23
4/4/2021
24
5/4/2021
25
6/4/2021
26
7/4/2021
27
8/4/2021
28
9/4/2021
29
10/4/2021
30
11/4/2021
Willow
MoondayTirsdayOdinsdayThorsdayFriggasdayLokidaySundayMooneve
01
12/4/2021
02
13/4/2021
03
14/4/2021
04
15/4/2021
05
16/4/2021
06
17/4/2021
07
18/4/2021
08
19/4/2021
09
20/4/2021
10
21/4/2021
11
22/4/2021
12
23/4/2021
13
25/4/2021
14
26/4/2021
15
27/4/2021
16
27/4/2021
17
28/4/2021
18
29/4/2021
19
Beltaine
20
Mayday
21
2/5/2021
22
3/5/2021
23
4/5/2021
24
5/5/2021
25
6/5/2021
26
7/5/2021
27
8/5/2021
28
9/5/2021
29
10/5/2021
30
11/5/2021
Hawthorn
MoondayTirsdayOdinsdayThorsdayFriggasdayLokidaySundayMooneve
01
12/5/2021
02
13/5/2021
03
14/5/2021
04
15/5/2021
05
16/5/2021
06
17/5/2021
07
18/5/2021
08
19/5/2021
09
20/5/2021
10
20/5/2021
11
21/5/2021
12
22/5/2021
13
23/5/2021
14
24/5/2021
15
25/5/2021
16
26/5/2021
17
27/5/2021
18
29/5/2021
19
30/5/2021
20
31/5/2021
21
1/6/2021
22
2/6/2021
23
3/6/2021
24
4/6/2021
25
5/6/2021
26
6/6/2021
27
7/6/2021
28
8/6/2021
29
9/6/2021
30
10/6/2021
Oak
MoondayTirsdayOdinsdayThorsdayFriggasdayLokidaySundayMooneve
01
11/6/2021
02
12/6/2021
03
12/6/2021
04
13/6/2021
05
14/6/2021
06
15/6/2021
07
16/6/2021
08
17/6/2021
09
18/6/2021
10
19/6/2021
11
20/6/2021
12
Midsummer
13
22/6/2021
14
23/6/2021
15
24/6/2021
16
25/6/2021
17
26/6/2021
18
27/6/2021
19
28/6/2021
20
29/6/2021
21
30/6/2021
22
1/7/2021
23
3/7/2021
24
4/7/2021
25
5/7/2021
26
5/7/2021
27
6/7/2021
28
7/7/2021
29
8/7/2021
Holly
MoondayTirsdayOdinsdayThorsdayFriggasdayLokidaySundayMooneve
01
9/7/2021
02
10/7/2021
03
12/7/2021
04
13/7/2021
05
14/7/2021
06
15/7/2021
07
16/7/2021
08
17/7/2021
09
18/7/2021
10
19/7/2021
11
20/7/2021
12
21/7/2021
13
22/7/2021
14
23/7/2021
15
24/7/2021
16
25/7/2021
17
26/7/2021
18
27/7/2021
19
28/7/2021
20
28/7/2021
21
29/7/2021
22
30/7/2021
23
31/7/2021
24
Lammas
25
2/8/2021
26
3/8/2021
27
5/8/2021
28
6/8/2021
29
7/8/2021
Hazel
MoondayTirsdayOdinsdayThorsdayFriggasdayLokidaySundayMooneve
01
8/8/2021
02
9/8/2021
03
10/8/2021
04
11/8/2021
05
12/8/2021
06
13/8/2021
07
15/8/2021
08
16/8/2021
09
17/8/2021
10
18/8/2021
11
19/8/2021
12
20/8/2021
13
20/8/2021
14
21/8/2021
15
22/8/2021
16
23/8/2021
17
24/8/2021
18
25/8/2021
19
26/8/2021
20
27/8/2021
21
28/8/2021
22
29/8/2021
23
30/8/2021
24
31/8/2021
25
1/9/2021
26
2/9/2021
27
3/9/2021
28
4/9/2021
29
5/9/2021
30
6/9/2021
Vine
MoondayTirsdayOdinsdayThorsdayFriggasdayLokidaySundayMooneve
01
7/9/2021
02
8/9/2021
03
9/9/2021
04
10/9/2021
05
11/9/2021
06
12/9/2021
07
12/9/2021
08
13/9/2021
09
14/9/2021
10
15/9/2021
11
16/9/2021
12
18/9/2021
13
19/9/2021
14
20/9/2021
15
Equinox
16
22/9/2021
17
23/9/2021
18
24/9/2021
19
25/9/2021
20
26/9/2021
21
27/9/2021
22
28/9/2021
23
29/9/2021
24
30/9/2021
25
1/10/2021
26
2/10/2021
27
3/10/2021
28
4/10/2021
29
5/10/2021
30
5/10/2021
Ivy
MoondayTirsdayOdinsdayThorsdayFriggasdayLokidaySundayMooneve
01
6/10/2021
02
7/10/2021
03
8/10/2021
04
9/10/2021
05
10/10/2021
06
11/10/2021
07
12/10/2021
08
13/10/2021
09
14/10/2021
10
15/10/2021
11
16/10/2021
12
17/10/2021
13
18/10/2021
14
19/10/2021
15
20/10/2021
16
22/10/2021
17
23/10/2021
18
24/10/2021
19
25/10/2021
20
26/10/2021
21
27/10/2021
22
28/10/2021
23
28/10/2021
24
29/10/2021
25
30/10/2021
26
Samhain
27
1/11/2021
28
2/11/2021
29
3/11/2021
Reed
MoondayTirsdayOdinsdayThorsdayFriggasdayLokidaySundayMooneve
01
4/11/2021
02
5/11/2021
03
6/11/2021
04
7/11/2021
05
8/11/2021
06
9/11/2021
07
10/11/2021
08
11/11/2021
09
12/11/2021
10
13/11/2021
11
14/11/2021
12
15/11/2021
13
16/11/2021
14
17/11/2021
15
18/11/2021
16
19/11/2021
17
20/11/2021
18
21/11/2021
19
22/11/2021
20
23/11/2021
21
24/11/2021
22
25/11/2021
23
26/11/2021
24
27/11/2021
25
28/11/2021
26
29/11/2021
27
30/11/2021
28
1/12/2021
29
2/12/2021
30
3/12/2021
Elder
MoondayTirsdayOdinsdayThorsdayFriggasdayLokidaySundayMooneve
01
4/12/2021
02
5/12/2021
03
6/12/2021
04
7/12/2021
05
8/12/2021
06
9/12/2021
07
10/12/2021
08
11/12/2021
09
12/12/2021
10
13/12/2021
11
14/12/2021
12
15/12/2021
13
16/12/2021
14
17/12/2021
15
18/12/2021
16
19/12/2021
17
20/12/2021