BEGIN:VCALENDAR VERSION:2.0 PRODID:icalendar-ruby CALSCALE:GREGORIAN METHOD:PUBLISH BEGIN:VEVENT DTSTAMP:20250618T142104Z UID:f8401c5a-2798-4826-b793-8f66dde0be68 DTSTART:20270706T000000 END:VEVENT END:VCALENDAR