Special 364/371-Day Perpetual Calendar

Alternative Reckoning of the traditional Gregorian Calendar.
See the "Leap Week" section in the middle of this page for more information.

   

* 1 *

2

3

4

5

6

7

    

1

2

3

4

5

    

1

2

8

9

10

11

12

13

14

  

6

7

8

9

10

11

12

  

3

4

5

6

7

8

9

*15*

16

17

18

19

20

21

  

13

14

15

16

17

18

19

  

10

11

12

13

14

15

16

22

23

24

25

26

27

28

  

20

21

22

23

24

25

26

  

17

18

19

20

21

22

23

29

30

    

27

28

29

30

31

    

24

25

26

27

28

29

30
   

1

2

3

4

5

6

7

    

1

2

3

4

5

    

1

2

8

9

10

11

12

13

14

  

6

7

8

9

10

11

12

  

3

4

5

6

7

8

9

15

16

17

18

19

20

21

  

13

14

15

16

17

18

19

  

10

11

12

13

14

15

16

22

23

24

25

26

27

28

  

20

21

22

23

24

25

26

  

17

18

19

20

21

22

23

29

30

    

* 27 *

28

29

30

31

    

24

25

26

27

28

29

30
 

** Leap Week **

  
 

Mon

Tue

Wed

Thu

Fri

Sat

Sun

  
 

1

2

3

4

5

6

7

  


Regular Year - 364 days ... 52 7-day weeks     Leap Year - 371 days ... 53 7-day weeks

Halves - 182 / 182 | Quarters - 91 / 91 / 91 / 91

Each week begins on a Monday, ends on a Sunday -- No chance ever of a Friday the 13th !!


Leap Year is 371 days (53 weeks) long with a 7-day "Leap Week" between June 30th and July 1st.
It is any year that ends in "0" or "5", with the following exceptions ...

    (1) Any years ending in "25" or "75"

    (2) Any Century Years divisible by 400 (1600, 2000, 2400, 2800, etc.),
    which of course is the exact opposite of the actual Gregorian system.


In any 400-year period, there are 329 364-day regular years (119,756 days) and 71 371-day
Leap Years (26,341 days).   This makes for a total of 146,097 days (exactly 20,871 7-day
weeks) during the 400-year period.

Remarkably, the figures of 146,097 days and 20,871 weeks are an -EXACT MATCH- to
the days and weeks within any 400-year period of the actual Gregorian Calendar !!!


* Special Note *
The author of this web-site (frankosite2020.com - where you are now) is not the only one who has
proposed this particular method of 364/371-day calendar reckoning.

See the Symmetry 010 Calendar for more details,   as well as its "brother", the Symmetry 454 Calendar


   

1

2

3

* 4 *

5

6

7

    

1

2

3

4

5

    

1

2

8

9

10

11

12

13

14

  

6

7

8

9

10

11

12

  

* 3 *

4

5

6

7

8

9

15

16

17

18

19

20

21

  

13

14

15

16

17

18

19

  

10

11

12

13

14

15

16

22

23

24

25

26

27

28

  

20

21

22

23

24

25

26

  

17

18

19

20

21

22

23

29

30

    

27

28

29

30

31

    

24

25

26

27

28

29

30
   

1

2

3

4

5

6

7

    

1

2

3

4

5

    

1

2

8

9

10

11

12

13

14

  

6

7

8

9

10

*11*

12

  

3

4

5

6

7

8

9

15

16

17

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21

  

13

14

15

16

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18

19

  

10

11

12

13

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15

16

22

23

24

25

26

27

28

  

20

21

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*23*

24

25

26

  

17

18

19

20

21

22

23

29

30

    

27

28

29

30

31

    

24

*25*

26

27

28

29

30




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Special 364/371-Day Perpetual Calendar

Alternative Reckoning of the traditional Gregorian Calendar.
See the "Leap Week" section in the middle of this page for more information.


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