diary-remind-message

diary-remind-message is a variable defined in `diary-lib.el'.
Its value is shown below.

Documentation:
Pseudo-pattern giving form of reminder messages in the fancy diary display.

Used by the function `diary-remind', a pseudo-pattern is a list of
expressions that can involve the keywords `days' (a number), `date'
(a list of month, day, year), and `diary-entry' (a string).

You can customize this variable.

Value:

("Reminder: Only "
 (if
     (zerop
      (% days 7))
     (format "%d week%s"
	     (/ days 7)
	     (if
		 (= 7 days)
		 "" "s"))
   (format "%d day%s" days
	   (if
	       (= 1 days)
	       "" "s")))
 " until " diary-entry)