BEGIN:VCALENDAR VERSION:2.0 PRODID:ics BEGIN:VEVENT UID:61aebe5711a8f DTSTART;TZID=Asia/Bangkok:20210414T140300 SEQUENCE:0 TRANSP:OPAQUE DTEND;TZID=Asia/Bangkok:20210513T000000 SUMMARY:Silent Period CLASS:PUBLIC DTSTAMP:20211207T015223Z END:VEVENT END:VCALENDAR