Variable: calendar-islamic-epoch
calendar-islamic-epoch is a variable defined in cal-islam.el.gz.
Value
227015
Documentation
Absolute date of start of Islamic calendar = July 16, 622 AD (Julian).
Source Code
;; Defined in /usr/src/emacs/lisp/calendar/cal-islam.el.gz
(defconst calendar-islamic-epoch
(eval-when-compile (calendar-julian-to-absolute '(7 16 622)))
"Absolute date of start of Islamic calendar = July 16, 622 AD (Julian).")