BEGIN:VCALENDAR VERSION:2.0 PRODID:-//hacksw/handcal//NONSGML v1.0//EN TZ:+00 BEGIN:VEVENT DTSTART:20121117T000000Z DTEND:20121117T000000Z SUMMARY:Comet 91AV starts on the 17th November 2012 LOCATION:National Space Centre,United Kingdom END:VEVENT END:VCALENDAR