BEGIN:VCALENDAR VERSION:2.0 PRODID:-//hacksw/handcal//NONSGML v1.0//EN TZ:+00 BEGIN:VEVENT DTSTART:20220420T000000Z DTEND:20220420T000000Z SUMMARY:Open-Source Tools for Chemists: Standard registration deadline due before 20th April 2022 LOCATION: END:VEVENT END:VCALENDAR