The Bulgarian calendar is the calendar of the ancient Bulgarians restored from written historical data Nominalia of the Bulgarian khans and the folk tales and legends. There are studies of various scholars who sometimes quite differ in conclusions reached.

Beginning of the Calendar

Different researchers assume different starting point for the calendar. In our calendar model, we have adopted for the start of the calendar the day of the winter solstice 21-st of December 5506 Before Christ (Monday according to the Grigorian calendar). And that is the assumed to be the the first day of the Bulgarian calendar year 1. In other words, we can assume that the first year of the Bulgarian calendar coincides almost completely with 5505 Before Christ in the Gregorian calendar.


... 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 ...
December 5506-th yr. Before Christ January 5505-th yr. Before Christ
   
  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 ...
  First Month of the First year of the Old Bulgarian Calendar
   
  Winter Solar solstice

When doing calculations and comparison with the Gregorian and/or Julian calendar, please bare in mind that in both Julian and Gregorian calendars there is no zero year - that is to say, that 1-st year Before Christ is immediately followed by the 1-st year after Christ.

... 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 ...
December 1-st year Before Christ January 1-st year After Christ

Structure of the year

According to researchers, the year has been divided into 12 months + one or two (in leap years) business days, which were beyond the months. Months were grouped in quarters of 3 months. First month of each quarter always had 31 days * , and the remaining two months had 30 days. So each quarter, there are exactly 91 days or 364 days that makes for four quarters. At the end of the year (or at the beginning according to some researchers) there has been one additional day that is outside months and was called Eni. The analogue of the day Eni is today's Ignazhden (St. Ignatius day), also called ednazhden. Counting the day Eni, the year had already 365 days.
Similar to the Julian and Gregorian calendar once on every 4 years additional leap day (midsummer day) was added based on some rules, which we would reviw further on. The leap day (midsummer day), just like the day Eni was beyond any month. It was put after the end of the 6-th month, before the start of the 7-th month. The leap day was called Behti. The analogue of the Midsummer day is today's Enyovden.

In our model the conditional Behti is represented as the last 31-st day in the 6-th month only on leap years, Eni is represented as the last 31-st day in the 12-th month.

First half of the year
First Quarter
First Month
1-st
2-nd
3-rd
4-th
5-th
6-th
7-th
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31
Second Month
1-st
2-nd
3-rd
4-th
5-th
6-th
7-th
1 2 3 4
5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30
Third Month
1-st
2-nd
3-rd
4-th
5-th
6-th
7-th
1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
Second Quarter
Fourth Month
1-st
2-nd
3-rd
4-th
5-th
6-th
7-th
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31
Fifth Month
1-st
2-nd
3-rd
4-th
5-th
6-th
7-th
1 2 3 4
5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30
Sixth Month
1-st
2-nd
3-rd
4-th
5-th
6-th
7-th
1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
Day Behti
Second half of the year
Third Quarter
Seventh Month
1-st
2-nd
3-rd
4-th
5-th
6-th
7-th
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31
Eight Month
1-st
2-nd
3-rd
4-th
5-th
6-th
7-th
1 2 3 4
5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30
Nineth Month
1-st
2-nd
3-rd
4-th
5-th
6-th
7-th
1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
Fourth Month
Tenth Month
1-st
2-nd
3-rd
4-th
5-th
6-th
7-th
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31
Eleventh Month
1-st
2-nd
3-rd
4-th
5-th
6-th
7-th
1 2 3 4
5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30
Twelvth Month
1-st
2-nd
3-rd
4-th
5-th
6-th
7-th
1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
Day Eni
It is assumed that the days Eni and Behti, are not counted as days of a week. These are the so-called days which are «not counted». Without them, the rest of the days that count, form exactly 52 weeks. So if the year begins on Monday, the next year will also begin on Monday and each calendar date remains fixed forever in a specific day of the week.

Some researchers suggest that Bulgarian week began with Sunday. Basis for such an assumption is the name of a day Wednesday - sryada - that means in Bulgarian 'middle' (of the week).
An alternative assumption is that Monday was widely adopted as the first day of the week. The grounds for such an alternative assumption are the names of the following days: Tuesday (vtornik), Thursday (chetvartak) and Friday (petak) - meaning, respectively, second, fourth and fifth (day of the week) - in bulgarian sekond - vtori, fourth - chetvarti, fifth - peti. That is to say if Tuesday is the second day, then Monday is supposed to be the first.
In our model, we accept contingent names of days of the week - 1-st, 2-nd, 3-rd, 4-th, 5-th, 6-th and 7-th.

In any case, the days of the week do not match to the days of the week that we know from the modern Gregorian calendar. This is because in the modern calendar, there are no days that are not counted and are not included in the composition of the week. As we said in the Bulgarian calendar, such days are Eni and Behti.

*: There are also hypotheses, that the first and second month of each quarter had 30 days, but the third had 31 days. Common across all hypotheses is that the year is divided into quarters of 91 days.


Cycles for correction of the calendar

Tropical Earth year - that is the time for which the Earth makes one complete lap around the Sun, equals 190 419 365.242 Earth days - that is to say 365 days, 5 hours, 48 minutes and 45.5 seconds. So in a calendar year of 365 days, it goes faster with a quarter day (5 hours, 48 minutes and seconds 45.5) each year. After four years, the calendar year is starting approximately 1 day before completing the astronomical round of the Earth around the Sun.

To stay in sync, the calendar year need to be corrected by adding a leap day every four years - the so-called day Behti that is added at the end of the 6-th month. This adjustment, however, is not sufficient because the high gain of the calendar was not exactly a day (24 hours). It is 23 hours, 15 minutes and 2 seconds. So after adding the leap day the calendar begins to lag.

This requires a system of additional adjustments. This system divides the calendar into periods, as shown below.

Four year period

Every forth year has an additional leap day named Behti at the end of the 6-th month. A year with a leap day would be called a leap year. An year without a leap day would be called a non-leap year.

First Non Leap
Year 		Second Non Leap
Year 		Third Non Leap
Year 		Fourth LEAP
Year

Twelve year period

Three four - year periods form one 12 year period. This period is not characterized by a calendar adjustment, but what makes it special is that each year from the 12 year cycle has an animal assigned to it - that is why this 12 year cycle is also called animalian cycle. Various researchers adopt different order of animals, as well as different starting animal. The names of the animals are also controversial. Here are some examples:

  According To
  Georgi Krustev Yordan Vulchev Petur Dobrev
  animal name(s) animal name(s) animal name(s)
P Pig Dox Pig dox, dok, prase
Q Mouse Karan Mouse somor, shushi Mouse Somor
Y Ox Shegor Ox shegor, kuvrat, buza, busman Ox Shegor
y Snow Leopard Barus Tiger bars, parus, barus - -
r Rabbit Dvan Rabbit dvansh Rabbit Dvan
G Dragon Hala Dragon-Snake ver, dragun, kala, slav Dragon Ver
w Snake Snake dilom, delyan, attilla Snake Dilom
h Horse Tag Horse tek, tag, tih, alasha Horse Teku
q Monkey Pisin Monkey pesin, pisin - -
X Ram Ram suruh, sever, rasate - -
u Cock Tox Cock toh, tah Cock Toh
I Dog Et-h Dog et-h Dog Et-h
P Boar Dohs

Each 12-year period has been either male or female. In a male period - all years within this period were male - the corresponding animals have been male. In a female period - all years within the period comply with the animals of the female sex. After each male 12 year period, a female one follows. After that a mail period again and so on...

Sixty year period (star day)

A period of 60 years equals exactly to 5 twelve-year cycles or 15 four-year cycles. It was conventially called «star day» by Yordan Vulchev. Since the 60-year cycle is multiple of 4 year periods, then it, generally, ends in a leap year. Such a star day would be called - a leap star day.

In certain cases, for the correction of the calendar, the leap day of the last year in the 60 year period need to be taken away. In such case, we will call the star day a non leap star day.

Leap Star Day NON Leap Star Day
B L A C K
12 years cycle № 1.
4 years № 1
 № 1. Non leap year
№ 2. Non leap year
№ 3. Non leap year
№ 4. Leap year
4 years № 2
 № 5. Non leap year
№ 6. Non leap year
№ 7. Non leap year
№ 8. Leap year
4 years № 3
 № 9. Non leap year
№ 10; Non leap year
№ 11; Non leap year
№ 12. Leap year
R E D
12 years cycle № 2.
4 years № 4
 № 13. Non leap year
№ 14. Non leap year
№ 15. Non leap year
№ 16. Leap year
4 years № 5
 № 17. Non leap year
№ 18. Non leap year
№ 19. Non leap year
№ 20. Leap year
4 years № 6
 № 21. Non leap year
№ 22. Non leap year
№ 23. Non leap year
№ 24. Leap year
Y E L L O W
12 years cycle № 3.
4 years № 7
 № 25. Non leap year
№ 26. Non leap year
№ 27. Non leap year
№ 28. Leap year
4 years № 8
 № 29. Non leap year
№ 30. Non leap year
№ 31. Non leap year
№ 32. Leap year
4 years № 9
 № 33. Non leap year
№ 34. Non leap year
№ 35. Non leap year
№ 36. Leap year
B L U E
12 years cycle № 4.
4 years № 10
 № 37. Non leap year
№ 38. Non leap year
№ 39. Non leap year
№ 40. Leap year
4 years № 11
 № 41. Non leap year
№ 42. Non leap year
№ 43. Non leap year
№ 44. Leap year
4 years № 12
 № 45. Non leap year
№ 46. Non leap year
№ 47. Non leap year
№ 48. Leap year
W H I T E
12 years cycle № 5.
4 years № 13
 № 49. Non leap year
№ 50. Non leap year
№ 51. Non leap year
№ 52. Leap year
4 years № 14
 № 53. Non leap year
№ 54. Non leap year
№ 55. Non leap year
№ 56. Leap year
4 years № 15
 № 57. Non leap year
№ 58. Non leap year
№ 59. Non leap year
№ 60. Leap year
B L A C K
12 years cycle № 1.
4 years № 1
 № 1. Non leap year
№ 2. Non leap year
№ 3. Non leap year
№ 4. Leap year
4 years № 2
 № 5. Non leap year
№ 6. Non leap year
№ 7. Non leap year
№ 8. Leap year
4 years № 3
 № 9. Non leap year
№ 10; Non leap year
№ 11; Non leap year
№ 12. Leap year
R E D
12 years cycle № 2.
4 years № 4
 № 13. Non leap year
№ 14. Non leap year
№ 15. Non leap year
№ 16. Leap year
4 years № 5
 № 17. Non leap year
№ 18. Non leap year
№ 19. Non leap year
№ 20. Leap year
4 years № 6
 № 21. Non leap year
№ 22. Non leap year
№ 23. Non leap year
№ 24. Leap year
Y E L L O W
12 years cycle № 3.
4 years № 7
 № 25. Non leap year
№ 26. Non leap year
№ 27. Non leap year
№ 28. Leap year
4 years № 8
 № 29. Non leap year
№ 30. Non leap year
№ 31. Non leap year
№ 32. Leap year
4 years № 9
 № 33. Non leap year
№ 34. Non leap year
№ 35. Non leap year
№ 36. Leap year
B L U E
12 years cycle № 4.
4 years № 10
 № 37. Non leap year
№ 38. Non leap year
№ 39. Non leap year
№ 40. Leap year
4 years № 11
 № 41. Non leap year
№ 42. Non leap year
№ 43. Non leap year
№ 44. Leap year
4 years № 12
 № 45. Non leap year
№ 46. Non leap year
№ 47. Non leap year
№ 48. Leap year
W H I T E
12 years cycle № 5.
4 years № 13
 № 49. Non leap year
№ 50. Non leap year
№ 51. Non leap year
№ 52. Leap year
4 years № 14
 № 53. Non leap year
№ 54. Non leap year
№ 55. Non leap year
№ 56. Leap year
4 years № 15
 № 57. Non leap year
№ 58. Non leap year
№ 59. Non leap year
№ 60. Non leap year

Actually the only difference between the leap star day and non-leap star day is in the last year - the 60-th year. In the leap star day it is a leap year. In the non-leap star day it is not.
Each star day is split into 5 12-year periods. Each of these periods has been assigned an element, a corresponding color and direction. The five elements/colors/directions are:

  ELEMENT COLOR DIRECTION
1. WATER BLACK CENTER
2. FIRE RED WEST
3. EARTH YELLOW SOUTH
4. TREE BLUE NORTH
5. METAL WHITE EAST

Each of the 5 12-year periods, is considered either male or female in an alternating sequence.
Star day, which begins with the male 12-year period, will be called male, and one that begins with the female 12-year period would be called female. Within two consecutive star days (120 years), we can find all of the possible combinations of element, sex and animal. So the combination of element, sex and animal can be used to identify a date within a 120-year period.

    ELEMENT SEX YEARS
Male Star Day
 I. WATER MALE 1 2 3 4 5 6 7 8 9 10 11 12
II. FIRE FEMALE 13 14 15 16 17 18 19 20 21 22 23 24
III. EARTH MALE 25 26 27 28 29 30 31 32 33 34 35 36
IV. TREE FEMALE 37 38 39 40 41 42 43 44 45 46 47 48
V. METAL MALE 49 50 51 52 53 54 55 56 57 58 59 60
Female Star Day
 VI. WATER FEMALE 61 62 63 64 65 66 67 68 69 70 71 72
VII. FIRE MALE 73 74 75 76 77 78 79 80 81 82 83 84
VIII. EARTH FEMALE 85 86 87 88 89 90 91 92 93 94 95 96
IX. TREE MALE 97 98 99 100 101 102 103 104 105 106 107 108
X. METAL FEMALE 109 110 111 112 113 114 115 116 117 118 119 120


Four hundred and twenty year period (STAR WEEK)

When we group 7 star days (each consisting of 60 years), we receive an amount of 420 years, which we call a star week. The first, third and fifth star days in each star week are always non-leap star days. The second, fourth and sixth are always leap. The seventh Star day in general is also leap, but when there is a need for further correction in the calendar, it is replaced by a non-leap one. A star week in which the last star day is non-leap, will be called - non-leap. Similarly if the last star day is leap, the whole star week would be called - leap.

 
years
days
LEAP STAR WEEK
1. Non-Leap star day 60 21 914
2. Leap star day 60 21 915
3. Non-Leap star day 60 21 914
4. Leap star day 60 21 915
5. Non-Leap star day 60 21 914
6. Leap star day 60 21 915
7. Leap star day 60 21 915
total: 420 153 402
 
years
days
NON-LEAP STAR WEEK
1. Non-Leap star day 60 21 914
2. Leap star day 60 21 915
3. Non-Leap star day 60 21 914
4. Leap star day 60 21 915
5. Non-Leap star day 60 21 914
6. Leap star day 60 21 915
7. Non-Leap star day 60 21 914
total: 420 153 401

Some researchers call the first star day - «Star Monday», the second - «Star Tuesday» etc..., while others are starting from «Star Sunday». In our research that is unimportant and in the table above we have indicated them just with the numbers from 1 to 7.
Each star week consists of 420 Earth years. The difference between a non leap and a leap star week is only in the last start day. The leap star week ends on a leap star day, which in its turn means that this star day (60 years) ends on a leap year. Conversely, the non-leap star week ends on non-leap star day, which in turn means that this star day (60 years) ends on a non-leap year.

Star month

Like the weeks on Earth are grouped in a month, the same way every 4 star weeks are grouped in a star month. So one star month equals 1 680 Earth years. Star month could also be «leap» or «non leap». Here is its structure in both cases.

LEAP STAR MONTH NON LEAP STAR MONTH
  Sequential № of Star Day
years
days
Leap star week 1 2 3 4 5 6 7 420 153 402
Non-Leap star week 8 9 10 11 12 13 14 420 153 401
Leap star week 15 16 17 18 19 20 21 420 153 402
Leap star week 22 23 24 25 26 27 28 420 153 402
total: 1 680 613 607
  Sequential № of Star Day
years
days
Leap star week 1 2 3 4 5 6 7 420 153 402
Non-Leap star week 8 9 10 11 12 13 14 420 153 401
Leap star week 15 16 17 18 19 20 21 420 153 402
Non-Leap star week 22 23 24 25 26 27 28 420 153 401
total: 1 680 613 606


Star year

Twelve star months form a so-called star year. Star year consists of exactly 20 160 Earth years. Sixth star month of the star year is always non leap. The other star months except the last month are always leap. The last star month is generally leap but can be non leap if further adjustment to the calendar is needed. To understand when such correction happens, see the description of star epoch.

STRUCTURE OF LEAP STAR YEAR
Leap
 Star Month № 1.
Sequential № of Star Day
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
Leap
 Star Month № 2.
Sequential № of Star Day
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
Leap
 Star Month № 3.
Sequential № of Star Day
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
Leap
 Star Month № 4.
Sequential № of Star Day
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
Leap
 Star Month № 5.
Sequential № of Star Day
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
Non-Leap
 Star Month № 6.
Sequential № of Star Day
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
Leap
 Star Month № 7.
Sequential № of Star Day
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
Leap
 Star Month № 8.
Sequential № of Star Day
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
Leap
 Star Month № 9.
Sequential № of Star Day
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
Leap
 Star Month № 10.
Sequential № of Star Day
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
Leap
 Star Month № 11.
Sequential № of Star Day
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
Leap
 Star Month № 12.
Sequential № of Star Day
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28


STRUCTURE OF NON-LEAP STAR YEAR
Leap
 Star Month № 1.
Sequential № of Star Day
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
Leap
 Star Month № 2.
Sequential № of Star Day
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
Leap
 Star Month № 3.
Sequential № of Star Day
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
Leap
 Star Month № 4.
Sequential № of Star Day
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
Leap
 Star Month № 5.
Sequential № of Star Day
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
Non-Leap
 Star Month № 6.
Sequential № of Star Day
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
Leap
 Star Month № 7.
Sequential № of Star Day
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
Leap
 Star Month № 8.
Sequential № of Star Day
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
Leap
 Star Month № 9.
Sequential № of Star Day
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
Leap
 Star Month № 10.
Sequential № of Star Day
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
Leap
 Star Month № 11.
Sequential № of Star Day
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
Non-Leap
 Star Month № 12.
Sequential № of Star Day
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28


Each star year consists of 48 weeks star. That equals exactly 336 star days (every star day consisting of 60 Earth years). Thus, each star year consists of 20 160 Earth years. Within a leap star year there are always exactly 7 363 283 (seven million, three hundred and sixty-three thousand, two hundred eighty-three) Earth days. Within a non leap star year there are always exactly 7 363 282 earth days.

Period of 4 star years

Star years just like earth years are grouped in fours. In general, only the second star year is a non leap year. From the rest - the first, the third and the fourth are leap. However when there is a need of correction to he calendar, all the four star years are leap. To understand when that happens, please see section for star epoch. Every period of 4 star years consists of just 80 640 Earth years. The usual non-leap period of 4 star years (when the second star year is non-leap, and the other star years are leap) consists of 29 453 131 earth days. The leap period of 4 star years (when all the four star years are leap due to the need for correction) consists of 29 453 132 earth days.

NON-LEAP PERIOD OF
4 STAR YEARS
(80 640 EARTH YEARS)		 LEAP PERIOD OF
4 STAR YEARS
(80 640 EARTH YEARS)
 
years
days
1. Leap star year 20 160 7 363 283
2. Non-Leap star year 20 160 7 363 282
3. Leap star year 20 160 7 363 283
4. Leap star year 20 160 7 363 283
total: 80 640 29 453 131
 
years
days
1. Leap star year 20 160 7 363 283
2. Leap star year 20 160 7 363 283
3. Leap star year 20 160 7 363 283
4. Leap star year 20 160 7 363 283
total: 80 640 29 453 132


Star Epoch

Star epoch is the last and greatest period in the Bulgarian calendar. That period completes the correction of the calendar, so this period does not have a leap and non-leap variants. It consists of 125 periods of 4 star years, or exactly 500 star years.
All the periods of 4 star years are non leap (which means that the second star year is non leap and the first, the third and the fourth star years are leap), with the exception of the 63-rd period of 4 star years. It is leap, which means, that all its 4 star years are leap.

That is to say that star year with number 250 is leap.

Each star epoch consists of 10 080 000 (ten million and eighty thousand) Earth years, or exactly 3 681 641 376 (three billion, six hundred eighty-one million, six hundred Forty-one thousand, three hundred seventy-six) Earth days.

1 2 3 4 5 6 7 8 9 10
1234 5678 9101112 13141516 17181920 21222324 25262728 29303132 33343536 37383940
11 12 13 14 15 16 17 18 19 20
41424344 45464748 49505152 53545556 57585960 61626364 65666768 69707172 73747576 77787980
21 22 23 24 25 26 27 28 29 30
81828384 85868788 89909192 93949596 979899100 101102103104 105106107108 109110111112 113114115116 117118119120
31 32 33 34 35 36 37 38 39 40
121122123124 125126127128 129130131132 133134135136 137138139140 141142143144 145146147148 149150151152 153154155156 157158159160
41 42 43 44 45 46 47 48 49 50
161162163164 165166167168 169170171172 173174175176 177178179180 181182183184 185186187188 189290291292 293294295296 297298299200
51 52 53 54 55 56 57 58 59 60
201202203204 205206207208 209210211212 213214215216 217218219220 221222223224 225226227228 229230231232 233234235236 237238239240
61 62
241242243244 245246247248
63 63-rd period of 4 star years is the only in the star epoch when all its star years are leap star years.
249250251252
64 65
253254255256 257258259260
66 67 68 69 70 71 72 73 74 75
261262263264 265266267268 269270271272 273274275276 277278279280 281282283284 285286287288 289290291292 293294295296 297298299300
76 77 78 79 80 81 82 83 84 85
301302303304 305306307308 309310311312 313314315316 317318319320 321322323324 325326327328 329330331332 333334335336 337338339340
86 87 88 89 90 91 92 93 94 95
341342343344 345346347348 349350351352 353354355356 357358359360 361362363364 365366367368 369370371372 373374375376 377378379380
96 97 98 99 100 101 102 103 104 105
381382383384 385386387388 389390391392 393394395396 397398399400 401402403404 405406407408 409410411412 413414415416 417418419420
106 107 108 109 110 111 112 113 114 115
421422423424 425426427428 429430431432 433434435436 437438439440 441442443444 445446447448 449450451452 453454455456 457458459460
116 117 118 119 120 121 122 123 124 125
461462463464 465466467468 469470471472 473474475476 477478479480 481482483484 485486487488 489490491492 493494495496 497498499500


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