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5.4.2.2 Calendar System Date Conversion ¶

Calendar supports conversion of dates from Gregorian (default) to a number of different calendar systems. Choose “(c) Conversions›” from the main menu to select from a list of such calendars.

Supported calendar systems:

• Astronomical
• Bahá’í
• Ethiopic
• French Revolutionary
• Hebrew
• Islamic
• Julian
• Lunar (Chinese)
• Mayan
• Persian

Selecting a calendar system will raise a menu that offers date conversion commands between it and the Gregorian system. In the screenshot below, the Lunar (Chinese) calendar system menu is shown.

To convert a Gregorian date to Lunar (Chinese):

1. Move cursor (point) in Calendar window to desired date. (The command “(g) Goto…” can be used to accomplish this.)
2. Choose “(c) Date at Cursor”.

To convert a Lunar (Chinese) date to Gregorian:

1. Choose “(G) Goto…” and follow the prompts.

Certain non-Gregorian calendar systems are supported by the diary (Bahá’í, Hebrew, Islamic, Lunar (Chinese)). For such systems, their menus will offer choices to insert diary events.

Note that inserting non-Gregorian diary events require configuration of the variables diary-nongregorian-listing-hook and diary-nongregorian-marking-hook as detailed in Diary Entries using non-Gregorian Calendars ((emacs)Non-Gregorian Diary).

Both of these variables can be configured from the Calendar Settings menu.