BEGIN:VCALENDAR VERSION:2.0 PRODID:ics BEGIN:VEVENT UID:61ad15240ea86 DTSTART;TZID=Asia/Bangkok:20210713T114000 SEQUENCE:0 TRANSP:OPAQUE DTEND;TZID=Asia/Bangkok:20210813T114100 SUMMARY:Silent Period CLASS:PUBLIC DTSTAMP:20211205T193812Z END:VEVENT END:VCALENDAR