BEGIN:VCALENDAR VERSION:2.0 PRODID:-//hacksw/handcal//NONSGML v1.0//EN TZ:+00 BEGIN:VEVENT DTSTART:20211213T000000Z DTEND:20211215T000000Z SUMMARY:31st International Photovoltaic Science and Engineering Conference, PVSEC-31 starts on the 13th December 2021 LOCATION:Online,United Kingdom END:VEVENT END:VCALENDAR