Function: timezone-last-day-of-month
timezone-last-day-of-month is a byte-compiled function defined in
timezone.el.gz.
Signature
(timezone-last-day-of-month MONTH YEAR)
Documentation
The last day in MONTH during YEAR.
Source Code
;; Defined in /usr/src/emacs/lisp/timezone.el.gz
;; Partly copied from Calendar program by Edward M. Reingold.
;; Thanks a lot.
(defun timezone-last-day-of-month (month year)
"The last day in MONTH during YEAR."
(if (and (= month 2) (timezone-leap-year-p year))
29
(aref [31 28 31 30 31 30 31 31 30 31 30 31] (1- month))))