Calendar Description - Scheme ja
The Julian Annunciation calendar is a variant of the Julian calendar obtained by shifting the year change forward from the 1st January to the 25th March. It is also known as the calculus florentinus since this method was used in Florence.
Use Case
The Julian Annunciation calendar has been commonly used throughout Europe and the European colonies since the 11th century.
- France from the 11th century until the change to the Gregorian in 1582.
- England and its overseas territories, from the 12th century to 1st January 1752.
- Scotland, from the 12th century to 1st January 1600.
Definition
The Record consists of three julian required Fields named year,
month and day, a calculated field cyear
and the optional field wday.
The field cyear is the Civil Year while the year is the Historic Year.
| Record - Default order | ||||
|---|---|---|---|---|
| year | month | day | cyear | wday |
| Record - Ranking order | ||||
|---|---|---|---|---|
| cyear | month | day | wday | year |
The field cyear (civil year) equals year (historic year)
apart from the days 1st January to 24th March, when cyear equals year - 1
| ja | cyear | month | day |
|---|---|---|---|
| 1 | 3 | 25 |
| j | year | month | day |
|---|---|---|---|
| 1 | 3 | 25 |
| jdn | day |
|---|---|
| 1721507 |
Formats
Formatting a date for schemes where the New Year date (Historical Year) and Year number increment date (Civil Year) is different can lead to confusion if it is not made clear which year is displayed. It is proposed that the dual dating system is used for this scheme.
Dual Dates
The Civil year is always shown in full. If this is the same as the Historical year then this is the only year shown. If the years differ, then the last digit (or as many as are different) is shown. This is separated from the Civil year with a '/' slash character.
Formats Provided
| Formats - Grammar j_sh | |||||
|---|---|---|---|---|---|
| Code | Rule | Pseudo | Example | Note | |
| dmy | text | Input: day month cyear Output: dd Mon yyyy/h | 24 Mar 1233/4 25 Mar 1234 | D, S | |
| dmy+ | text | Input: day month cyear Output: dd Month yyyy/h | 24 March 1233/4 25 March 1234 | S | |
| wdmy | text | Input: wday day month cyear Output: Wday dd Mon yyyy/h | Fri 24 Mar 1233/4 Sat 25 Mar 1234 | ||
| wdmy+ | text | Input: wday day month cyear Output: Weekday dd Month yyyy/h | Friday 24 March 1233/4 Saturday 25 March 1234 | ||
| std | text | Input: day month cyear Output: ddth Month yyyy/h | 24th March 1233/4 25th March 1234 | S | |
| full | text | Input: wday day month cyear Output: Weekday ddth Month yyyy/h | Friday 24th March 1233/4 Saturday 25th March 1234 | ||
| mdy | text | Input: month day cyear Output: Mon dd, yyyy/h | Mar 24, 1233/4 Mar 25, 1234 | S | |
| mdy+ | text | Input: month day cyear Output: Month dd, yyyy/h | March 24, 1233/4 March 25, 1234 | S | |
| wmdy | text | Input: wday month day cyear Output: Wday, Mon dd, yyyy/h | Fri, Mar 24, 1233/4 Sat, Mar 25, 1234 | ||
| wmdy+ | text | Input: wday month day cyear Output: Weekday, Month dd, yyyy/h | Friday, March 24, 1233/4 Saturday, March 25, 1234 | ||
| cdef | text | Input: cyear month day Output: yyyy mm dd | 1233 3 24 1234 3 25 | H, S | |
| def | text | Input: year month day cyear Output: h mm dd yyyy | 1234 3 24 1233 1234 3 25 1234 | H | |
| u | unit | Input: 9hy 9m 9d 9cy Output: 9hy 9m 9d 9cy | 1234hy 3m 24d 1233cy 1234hy 3m 25d 1234cy | H | |
| Notes: D = Default, H = Hidden, S = Range shortcut supported. Example based on jdn# 2171859 and 2171860 | |||||
Script
| Script - Module hics:julian_shift |
|---|
| scheme ja { name "Julian Annunciation Florence"; base julian; epoch 1721507; // j:dmy# 25 Mar 1 grammar j_sh; } |
The script uses the grammar "j_sh" definition from jn Julian Nativity.
It also uses the lexicon "m" definition from
j Julian for the month field
and "w" definition from the
jwn Julian Week Number scheme
for the optional field wday.
