BEGIN:VCALENDAR NAME:Override Calendar PRODID:-//CalMerge//Calendar Merger 1.0//EN VERSION:2.0 CALSCALE:GREGORIAN BEGIN:VEVENT UID:20231225T000000-001@example.com DTSTART;VALUE=DATE:20231225 DTEND;VALUE=DATE:20231226 DTSTAMP:20231225T000000Z SUMMARY:Override Event END:VEVENT END:VCALENDAR