BEGIN:VCALENDAR VERSION:2.0 PRODID:-//hacksw/handcal//NONSGML v1.0//EN TZ:+00 BEGIN:VEVENT DTSTART:20210623T000000Z DTEND:20210623T000000Z SUMMARY:Workshop on Open-Source Tools in 91AV: Standard registration deadline due before 23rd June 2021 LOCATION:United Kingdom END:VEVENT END:VCALENDAR