-(defun gnus-icalendar-event--decode-datefield (ical field)
- (let* ((date (icalendar--get-event-property ical field))
- (date-props (icalendar--get-event-property-attributes ical field))
- (tz (plist-get date-props 'TZID)))
-
- (date-to-time (timezone-make-date-arpa-standard date nil tz))))
+(defun gnus-icalendar-event--decode-datefield (event field zone-map)
+ (let* ((dtdate (icalendar--get-event-property event field))
+ (dtdate-zone (icalendar--find-time-zone
+ (icalendar--get-event-property-attributes
+ event field) zone-map))
+ (dtdate-dec (icalendar--decode-isodatetime dtdate nil dtdate-zone)))
+ (apply 'encode-time dtdate-dec)))