BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//budem//invite//RU
CALSCALE:GREGORIAN
BEGIN:VEVENT
UID:demo-classic@budem
DTSTAMP:20260919T100000Z
DTSTART:20260919T100000Z
DTEND:20260919T160000Z
SUMMARY:Иван и Мария
END:VEVENT
END:VCALENDAR