User:Ashucky/Sketches/Laefevian calendar

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The Laefevian calendar, natively known as Skaljêrili trêat, is the calendar used in Laefevia. It is a solar calendar with 365 days in a common year and 366 days in a leap year. The calendar is fixed on the spring equinox, or 20th March in Gregorian calendar. The calendar was created in 2359 BCE and took effect in 2357 BCE. Therefore, the current year is 4372, which is also the 1061st leap year.

Months

There is a total of 13 months in the calendar, 12 of which have 30 days and one has 5 days, or 6 days in a leap year. However, the days of the 13th month are spread throughout the year and inserted between the dates of other months, because they are tied to the solstices and equinoxes. Originally the days of the 13th month were supposed be adjusted for each year, but the practice has fallen out of use soon after the implementation of the calendar, and the days now have a fixed position in the calendar, even though the actual time of the solstices and equinoxes changes.

Numeric name Month name Days Gregorian equivalent
1st month eltént 30 March
2nd month sušín 30 April
3rd month sávent 30 May
4th month koíssent 30 June
5th month vásint 30 July
6th month sétint 30 August
7th month wanánt 30 September
8th month ménent 30 October
9th month kággint 30 November
10th month lênnant 30 December
11th month íhahant 30 January
12th month éinint 30 February
13th month ráskint 5 or 6

The 13th month is the month where a leap day is added in leap years.

Weeks

A Laefevian week consists of 6 days, of which 4 are work days and 2 are work-free days (generally). Since each month is 30 days long, there are 5 week in every month, not counting the 13th month. Every month thus begins on the same day.

Numeric name Name of day Type of day
1st day zjólët workday
2nd day šéulët workday
3rd day máilët workday
4th day féllët workday
5th day hénlët weekend
6th day bjálët weekend

Ráskint (the 13th month)

The 13th month behaves differently from the other months. Its days have special names and are spread throughout the calendar, inserted between other days of the regular months. Four of the days in the 13th month designate the solstices and equinoxes, and the remaining day is the last day of the year (the last two days in a leap year).

Numeric name Name of day Event
1st day rílët spring equinox, the first day of the year
2nd day váilët summer solstice
3rd day kâklët autumn equinox
4th day énlët winter solstice
5th day irílët the last day of a common year; the penultimate day of a leap year
6th day jálët the last day of a leap year (does not exist in a common year)

Position of the days

The position of the days of the 13th month is fixed.

Common year
Preceded by Day Followed by
5 ráskint 1 ráskint 1 eltént
2 koísent 2 ráskint 3 koísent
4 wanánt 3 ráskint 5 wanánt
3 lênnant 4 ráskint 4 lênnant
30 éinint 5 ráskint 1 ráskint
Leap year
Preceded by Day Followed by
6 ráskint 1 ráskint 1 eltént
2 koísent 2 ráskint 3 koísent
4 wanánt 3 ráskint 5 wanánt
3 lênnant 4 ráskint 4 lênnant
30 éinint 5 ráskint 6 ráskint
5 ráskint 6 ráskint 1 ráskint

Calendar eras

The year numbering used in the Laefevian calendar consists of two eras: one for numbering the years before the time the calendar was implemented, and one for the time elapsed since its implementation.

Calendar ears
Time Full name Shortened Abbreviation Translation
Before year 0 Áoiri ték Áoriték AT Sun's era
After year 0 Éairi ték Éariték ET Moon's era

Leap years

The calendar observes leap cycles and leap years. A leap year occurs every 4 years, however, three leap years are removed from a period of 400 years, which is known as a leap cycle. The current year is the 1061st leap year. By the aforementioned calculations, it should be 1060th, however. This is because the calendar loses a day approximately every 3300 years, so the year 3400 AT was a leap year, even though it was supposed to be a common year.

The table below marks leap centuries in bold (future centuries are in italics):

1st millennium 2nd millennium 3rd millennium 4th millennium 5th millennium 6th millennium 7th millennium
0 1000 2000 3000 4000 5000 6000
100 1100 2100 3100 4100 5100 6100
200 1200 2200 3200 4200 5200 6200
300 1300 2300 3300 4300 5300 6300
400 1400 2400 3400 4400 5400 6400
500 1500 2500 3500 4500 5500 6500
600 1600 2600 3600 4600 5600 6600
700 1700 2700 3700 4700 5700 6700
800 1800 2800 3800 4800 5800 6800
900 1900 2900 3900 4900 5900 6900

Laefevian and Gregorian calendars correspondence

The Laefevian calendar begins on the 20 March in Gregorian calendar, and ends on the 19 March the following year. For example, the current year began on 20th March 2015 and it will end on 19th March 2016. Laefevian dates therefore always correspond to the same date in Gregorian calendar, except in leap years. This means that a common year, 13 éinint corresponds to 1st March, while in a leap year it corresponds to 29th February. All subsequent dates are therefore moved by one day forward in a leap year, and the Laefevian leap year ends on 6 ráskint, which corresponds to 19th March. In a common year, the Laefevian year ends on 5 ráskint, which again corresponds to 19th March.

Common year
Laefevian Gregorian
12 éinint 28 February
13 éinint 1 March
14 éinint 2 March
15 éinint 3 March
16 éinint 4 March
17 éinint 5 March
18 éinint 6 March
19 éinint 7 March
20 éinint 8 March
21 éinint 9 March
22 éinint 10 March
23 éinint 11 March
24 éinint 12 March
25 éinint 13 March
26 éinint 14 March
27 éinint 15 March
28 éinint 16 March
29 éinint 17 March
30 éinint 18 March
5 ráskint 19 March
Leap year
Laefevian Gregorian
12 éinint 28 February
13 éinint 29 February
14 éinint 1 March
15 éinint 2 March
16 éinint 3 March
17 éinint 4 March
18 éinint 5 March
19 éinint 6 March
20 éinint 7 March
21 éinint 8 March
22 éinint 9 March
23 éinint 10 March
24 éinint 11 March
25 éinint 12 March
26 éinint 13 March
27 éinint 14 March
28 éinint 15 March
29 éinint 16 March
30 éinint 17 March
5 ráskint 18 March
6 ráskint 19 March

The year 4372 AT and 2015 CE

The calendar of the current year, 4372 AT, is below. The corresponding Gregorian calendar dates are also provided. The starting Gregorian date is 20 March 2015, while the ending Gregorian date is 19 March 2016.

Laefevian Gregorian Laefevian Gregorian Laefevian Gregorian Laefevian Gregorian
1 ráskint 20 March 1 koísent 19 June 1 wanánt 18 September 1 lênnant 18 December
1 eltént 21 March 2 koísent 20 June 2 wanánt 19 September 2 lênnant 19 December
2 eltént 22 March 2 ráskint 21 June 3 wanánt 20 September 3 lênnant 20 December
3 eltént 23 March 3 koísent 22 June 4 wanánt 21 September 4 ráskint 21 December
4 eltént 24 March 4 koísent 23 June 3 ráskint 22 September 4 lênnant 22 December
5 eltént 25 March 5 koísent 24 June 5 wanánt 23 September 5 lênnant 23 December
6 eltént 26 March 6 koísent 25 June 6 wanánt 24 September 6 lênnant 24 December
7 eltént 27 March 7 koísent 26 June 7 wanánt 25 September 7 lênnant 25 December
8 eltént 28 March 8 koísent 27 June 8 wanánt 26 September 8 lênnant 26 December
9 eltént 29 March 9 koísent 28 June 9 wanánt 27 September 9 lênnant 27 December
10 eltént 30 March 10 koísent 29 June 10 wanánt 28 September 10 lênnant 28 December
11 eltént 31 March 11 koísent 30 June 11 wanánt 29 September 11 lênnant 29 December
12 eltént 1 April 12 koísent 1 July 12 wanánt 30 September 12 lênnant 30 December
13 eltént 2 April 13 koísent 2 July 13 wanánt 1 October 13 lênnant 31 December
14 eltént 3 April 14 koísent 3 July 14 wanánt 2 October 14 lênnant 1 January
15 eltént 4 April 15 koísent 4 July 15 wanánt 3 October 15 lênnant 2 January
16 eltént 5 April 16 koísent 5 July 16 wanánt 4 October 16 lênnant 3 January
17 eltént 6 April 17 koísent 6 July 17 wanánt 5 October 17 lênnant 4 January
18 eltént 7 April 18 koísent 7 July 18 wanánt 6 October 18 lênnant 5 January
19 eltént 8 April 19 koísent 8 July 19 wanánt 7 October 19 lênnant 6 January
20 eltént 9 April 20 koísent 9 July 20 wanánt 8 October 20 lênnant 7 January
21 eltént 10 April 21 koísent 10 July 21 wanánt 9 October 21 lênnant 8 January
22 eltént 11 April 22 koísent 11 July 22 wanánt 10 October 22 lênnant 9 January
23 eltént 12 April 23 koísent 12 July 23 wanánt 11 October 23 lênnant 10 January
24 eltént 13 April 24 koísent 13 July 24 wanánt 12 October 24 lênnant 11 January
25 eltént 14 April 25 koísent 14 July 25 wanánt 13 October 25 lênnant 12 January
26 eltént 15 April 26 koísent 15 July 26 wanánt 14 October 26 lênnant 13 January
27 eltént 16 April 27 koísent 16 July 27 wanánt 15 October 27 lênnant 14 January
28 eltént 17 April 28 koísent 17 July 28 wanánt 16 October 28 lênnant 15 January
29 eltént 18 April 29 koísent 18 July 29 wanánt 17 October 29 lênnant 16 January
30 eltént 19 April 30 koísent 19 July 30 wanánt 18 October 30 lênnant 17 January
1 sušínt 20 April 1 vásint 20 July 1 ménent 19 October 1 íhanant 18 January
2 sušínt 21 April 2 vásint 21 July 2 ménent 20 October 2 íhanant 19 January
3 sušínt 22 April 3 vásint 22 July 3 ménent 21 October 3 íhanant 20 January
4 sušínt 23 April 4 vásint 23 July 4 ménent 22 October 4 íhanant 21 January
5 sušínt 24 April 5 vásint 24 July 5 ménent 23 October 5 íhanant 22 January
6 sušínt 25 April 6 vásint 25 July 6 ménent 24 October 6 íhanant 23 January
7 sušínt 26 April 7 vásint 26 July 7 ménent 25 October 7 íhanant 24 January
8 sušínt 27 April 8 vásint 27 July 8 ménent 26 October 8 íhanant 25 January
9 sušínt 28 April 9 vásint 28 July 9 ménent 27 October 9 íhanant 26 January
10 sušínt 29 April 10 vásint 29 July 10 ménent 28 October 10 íhanant 27 January
11 sušínt 30 April 11 vásint 30 July 11 ménent 29 October 11 íhanant 28 January
12 sušínt 1 May 12 vásint 31 July 12 ménent 30 October 12 íhanant 29 January
13 sušínt 2 May 13 vásint 1 August 13 ménent 31 October 13 íhanant 30 January
14 sušínt 3 May 14 vásint 2 August 14 ménent 1 November 14 íhanant 31 January
15 sušínt 4 May 15 vásint 3 August 15 ménent 2 November 15 íhanant 1 February
16 sušínt 5 May 16 vásint 4 August 16 ménent 3 November 16 íhanant 2 February
17 sušínt 6 May 17 vásint 5 August 17 ménent 4 November 17 íhanant 3 February
18 sušínt 7 May 18 vásint 6 August 18 ménent 5 November 18 íhanant 4 February
19 sušínt 8 May 19 vásint 7 August 19 ménent 6 November 19 íhanant 5 February
20 sušínt 9 May 20 vásint 8 August 20 ménent 7 November 20 íhanant 6 February
21 sušínt 10 May 21 vásint 9 August 21 ménent 8 November 21 íhanant 7 February
22 sušínt 11 May 22 vásint 10 August 22 ménent 9 November 22 íhanant 8 February
23 sušínt 12 May 23 vásint 11 August 23 ménent 10 November 23 íhanant 9 February
24 sušínt 13 May 24 vásint 12 August 24 ménent 11 November 24 íhanant 10 February
25 sušínt 14 May 25 vásint 13 August 25 ménent 12 November 25 íhanant 11 February
26 sušínt 15 May 26 vásint 14 August 26 ménent 13 November 26 íhanant 12 February
27 sušínt 16 May 27 vásint 15 August 27 ménent 14 November 27 íhanant 13 February
28 sušínt 17 May 28 vásint 16 August 28 ménent 15 November 28 íhanant 14 February
29 sušínt 18 May 29 vásint 17 August 29 ménent 16 November 29 íhanant 15 February
30 sušínt 19 May 30 vásint 18 August 30 ménent 17 November 30 íhanant 16 February
1 sávent 20 May 1 sétint 19 August 1 kágittint 18 November 1 éinint 17 February
2 sávent 21 May 2 sétint 20 August 2 kágittint 19 November 2 éinint 18 February
3 sávent 22 May 3 sétint 21 August 3 kágittint 20 November 3 éinint 19 February
4 sávent 23 May 4 sétint 22 August 4 kágittint 21 November 4 éinint 20 February
5 sávent 24 May 5 sétint 23 August 5 kágittint 22 November 5 éinint 21 February
6 sávent 25 May 6 sétint 24 August 6 kágittint 23 November 6 éinint 22 February
7 sávent 26 May 7 sétint 25 August 7 kágittint 24 November 7 éinint 23 February
8 sávent 27 May 8 sétint 26 August 8 kágittint 25 November 8 éinint 24 February
9 sávent 28 May 9 sétint 27 August 9 kágittint 26 November 9 éinint 25 February
10 sávent 29 May 10 sétint 28 August 10 kágittint 27 November 10 éinint 26 February
11 sávent 30 May 11 sétint 29 August 11 kágittint 28 November 11 éinint 27 February
12 sávent 31 May 12 sétint 30 August 12 kágittint 29 November 12 éinint 28 February
13 sávent 1 June 13 sétint 31 August 13 kágittint 30 November 13 éinint 29 February
14 sávent 2 June 14 sétint 1 September 14 kágittint 1 December 14 éinint 1 March
15 sávent 3 June 15 sétint 2 September 15 kágittint 2 December 15 éinint 2 March
16 sávent 4 June 16 sétint 3 September 16 kágittint 3 December 16 éinint 3 March
17 sávent 5 June 17 sétint 4 September 17 kágittint 4 December 17 éinint 4 March
18 sávent 6 June 18 sétint 5 September 18 kágittint 5 December 18 éinint 5 March
19 sávent 7 June 19 sétint 6 September 19 kágittint 6 December 19 éinint 6 March
20 sávent 8 June 20 sétint 7 September 20 kágittint 7 December 20 éinint 7 March
21 sávent 9 June 21 sétint 8 September 21 kágittint 8 December 21 éinint 8 March
22 sávent 10 June 22 sétint 9 September 22 kágittint 9 December 22 éinint 9 March
23 sávent 11 June 23 sétint 10 September 23 kágittint 10 December 23 éinint 10 March
24 sávent 12 June 24 sétint 11 September 24 kágittint 11 December 24 éinint 11 March
25 sávent 13 June 25 sétint 12 September 25 kágittint 12 December 25 éinint 12 March
26 sávent 14 June 26 sétint 13 September 26 kágittint 13 December 26 éinint 13 March
27 sávent 15 June 27 sétint 14 September 27 kágittint 14 December 27 éinint 14 March
28 sávent 16 June 28 sétint 15 September 28 kágittint 15 December 28 éinint 15 March
29 sávent 17 June 29 sétint 16 September 29 kágittint 16 December 29 éinint 16 March
30 sávent 18 June 30 sétint 17 September 30 kágittint 17 December 30 éinint 17 March
5 ráskint 18 March
6 ráskint 19 March