BEGIN:VCALENDAR
PRODID:-//event//iCal4j 1.0//EN
CALSCALE:GREGORIAN
BEGIN:VEVENT
DTSTAMP:20260406T181650Z
DTSTART:20201223T183000Z
DTEND:20201225T182900Z
SUMMARY:christmas
LOCATION:    
END:VEVENT
END:VCALENDAR