* lisp/ox-icalendar.el (org-icalendar--combine-files): Correct typo in format-time-string specifier. This is a follow-up to the port of Emacs's e0ca8f791.
@@ -1033,7 +1033,7 @@ FILES is a list of files to build the calendar from."
user-full-name
;; Timezone.
(or (org-string-nw-p org-icalendar-timezone)
- (format-time-string "Z"))
+ (format-time-string "%Z"))
;; Description.
org-icalendar-combined-description
;; Contents.