BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
BEGIN:VEVENT
SUMMARY:online class
DTSTART;TZID=Europe/Zurich:20260615T164000
DTEND;TZID=Europe/Zurich:20260615T175500
LOCATION:
DESCRIPTION: 
STATUS:CONFIRMED
SEQUENCE:0
END:VEVENT
END:VCALENDAR