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Cultural Calendars

Cultural Calendars is a flavor mod that adds several cultural or religious calendars.

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日本語版はこちら

Chinese localization by 伊恩
- Cultural Calendars 汉化

Korean localization by Kuroten
- Cultural Calendars KR

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Latest Updates:

• Supported 1.13

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Add a calendar and date that matches the player's culture, religion, etc. to the in-game date tooltip at the bottom right of the screen.
These calendars move one day at a time, just like the in-game date, and each year begins with a new year based on its own calendar system. For example, the Byzantine New Year begins on September 1st of the Julian calendar, and the Hijri calendar year is 11 days shorter than the solar calendar.
However, these calendars are merely a flavor, and various game mechanics still take place on in-game dates.

Only works on new games.



The newly added calendars and their requirements are as follows. All requirements are against the player, their liege, or their top-liege.
The number after the month name indicates the number of months since the new year
(E.) stands for Epagomenal days

Calendar details and more[docs.google.com] (Google Sheets)

The added calendar is just for flavor and is not historically accurate.
At the start of each scenario, the calendar is set to match the real calendar to a certain extent, but because the in-game calendar (the Julian calendar) does not have leap years, the dates will differ from reality over the course of a few years.
In addition, the following changes have been made to each calendar.
Please also note the following:

• Hijri calendar
  Odd-numbered months are fixed at 30 days, and even-numbered months are fixed at 29 days.
  
• Hebrew calendar
  In the 7th Metonic cycle (19th year), the number of days in the month before the leap month is shorter. The number of days for Marcheshvan and Kislev is fixed
  
• Zoroastrian calendar
  Based on the Shahanshahi calendar. Month and day names may not be accurate. No leap years.
  
• Indian national calendar
  Based on calendars adopted after 1975. The Epoch is calculated as year zero. No leap years.
  
• Coptic / Ethiopian calendar
  No leap years.
  
• Persian (Solar Hijri) calendar
  Based on calendars adopted after the Pahlavi dynasty. No leap years.

Change only the string "PLAYER_SYNC_DATES_HEADER" in
It is compatible with mods that do not change the above, but will not work with starting dates added by mods.
Compatible with mods that do not change the above, but will not work with starting dates added by mods (as each calendar date must be set at game start)

More Bookmarks+ compatibility patch by tony_sm
- Cultural Calendars More Bookmarks+ Edition