BEGIN:VCALENDAR
PRODID:-//Events Calendar//iCal4j 1.0//EN
VERSION:1.0
CALSCALE:GREGORIAN
BEGIN:VEVENT
UID:event_447
DTSTAMP:20261009T042944Z
DTSTART:20260917T140000Z
DTEND:20260917T170000Z
SUMMARY:伦敦开放日
END:VEVENT
END:VCALENDAR