BEGIN:VCALENDAR VERSION:2.0 PRODID:icalendar-2023 BEGIN:VEVENT UID:1 SUMMARY: Some event ':' DTSTART;TZID="Western/Central Europe";VALUE=DATE-TIME:20211101T160000 DTEND;TZID="Western/Central Europe";VALUE=DATE-TIME:20211101T163000 DTSTAMP:20211004T150245Z END:VEVENT BEGIN:VEVENT UID:2 SUMMARY: Some other event DTSTART;TZID="Western/Central Europe";VALUE=DATE-TIME:20211101T164000 DTEND;TZID="Western/Central Europe";VALUE=DATE-TIME:20211101T165000 DTSTAMP:20211004T150245Z END:VEVENT END:VCALENDAR