BEGIN:VCALENDAR VERSION:2.0 PRODID:-//hacksw/handcal//NONSGML v1.0//EN TZ:+00 BEGIN:VEVENT DTSTART:20230921T000000Z DTEND:20230921T000000Z SUMMARY:RSC Sustainability Symposium 2023: Standard registration deadline due before 21st September 2023 LOCATION:新月直播app下载,London,United Kingdom END:VEVENT END:VCALENDAR