BEGIN:VCALENDAR VERSION:2.0 PRODID:-//开云体育 Inc//开云体育 Calendar//EN METHOD:CANCEL CALSCALE:GREGORIAN BEGIN:VEVENT STATUS:CANCELLED UID:calendar.18537@groups.io DTSTAMP:20191018T030949Z ORGANIZER;CN=yancophm@groups.io Group:mailto:yancophm@groups.io DTSTART:20211225T220000Z DTEND:20211226T050000Z SUMMARY:Museum Open RECURRENCE-ID;20211225T220000Z SEQUENCE:0 END:VEVENT END:VCALENDAR