BEGIN:VCALENDAR PRODID:-//hacksw/handcal//NONSGML v1.0//EN BEGIN:VEVENT DTSTART;TZID=Europe/London:20181019T183000 DTEND;TZID=Europe/London:20181019T193000 LOCATION: SUMMARY:Porgy and Bess DESCRIPTION: METHOD:PUBLISH END:VEVENT END:VCALENDAR