BEGIN:VCALENDAR VERSION:2.0 METHOD:PUBLISH BEGIN:VEVENT DTSTART:20260403T210000Z DTEND:20260403T235500Z LOCATION: TRANSP: OPAQUE SEQUENCE:0 UID: DTSTAMP:20260401T235226Z SUMMARY:Apertura Osservatorio Astronomico delle Prealpi Orobiche DESCRIPTION:Venerdì 3 Aprile 2026 dalle ore 21:00 alle ore 24:00 PRIORITY:1 CLASS:PUBLIC BEGIN:VALARM TRIGGER:-PT10080M ACTION:DISPLAY DESCRIPTION:Reminder END:VALARM END:VEVENT END:VCALENDAR