BEGIN:VCALENDAR VERSION:2.0 PRODID:-//hacksw/handcal//NONSGML v1.0//EN TZ:+00 BEGIN:VEVENT DTSTART:20241028T000000Z DTEND:20241028T000000Z SUMMARY:Air Quality in the 21st Century: Early bird registration deadline due before 28th October 2024 LOCATION:The 91AV,London,United Kingdom END:VEVENT END:VCALENDAR