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TZID:Etc/GMT+6
BEGIN:STANDARD
DTSTART:20000101T000000
RRULE:FREQ=YEARLY;BYMONTH=1
TZNAME:-06
TZOFFSETFROM:-0600
TZOFFSETTO:-0600
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BEGIN:VEVENT
UID:20261023T092556Z - 77277@d31febea322e
DTSTART;TZID=Etc/GMT+6:20251120T100000
DTEND;TZID=Etc/GMT+6:20251125T120000
CREATED:20261023T092556Z
DTSTAMP:20261023T092556Z
SUMMARY:Certificación i-Open Business (copia)
END:VEVENT
END:VCALENDAR