Variable: calendar-abbrev-length
calendar-abbrev-length is a customizable variable defined in
calendar.el.gz.
Value
3
Documentation
Default length of abbreviations to use for day and month names.
If you change this without using customize after the calendar has loaded,
then you may also want to change calendar-day-abbrev-array and
calendar-month-abbrev-array.
Source Code
;; Defined in /usr/src/emacs/lisp/calendar/calendar.el.gz
(defcustom calendar-abbrev-length 3
"Default length of abbreviations to use for day and month names.
If you change this without using customize after the calendar has loaded,
then you may also want to change `calendar-day-abbrev-array' and
`calendar-month-abbrev-array'."
:group 'calendar
:initialize 'custom-initialize-default
:set (lambda (symbol value)
(let ((dcustomized (calendar-customized-p 'calendar-day-abbrev-array))
(mcustomized (calendar-customized-p
'calendar-month-abbrev-array))
(hcustomized (calendar-customized-p 'cal-html-day-abbrev-array))
(ccustomized (calendar-customized-p 'calendar-day-header-array)))
(set symbol value)
(or dcustomized
(setq calendar-day-abbrev-array
(calendar-abbrev-construct calendar-day-name-array)))
(or mcustomized
(setq calendar-month-abbrev-array
(calendar-abbrev-construct calendar-month-name-array)))
(and (not hcustomized)
(boundp 'cal-html-day-abbrev-array)
(setq cal-html-day-abbrev-array calendar-day-abbrev-array))
(or ccustomized
(equal calendar-day-header-array
(setq calendar-day-header-array
(calendar-day-header-construct)))
(calendar-redraw))))
:type 'integer)