Calendar invitations from Webex use a wrong time zone in calendar app [answered]
asked 2020-03-20 17:34:35 +0200
I'm in Europe/Prague (which is UTC+1 during winter and UTC+2 during DST), but when I receive a calendar invitation to a Webex meeting over e-mail (a standard IMAP account with Dovecot on the server side), the built-in preview shows the event date one hour earlier. The meeting in webex was also created in the UTC+1 TZ, but instead of showing the meeting start at 10:00 AM, it is shown as 9:00 AM. The time stays wrong also when I add the event to the calendar via my XA2's (running Sailfish) email+calendar app, and also when I add the event from e-mail via our company's web app for mail and calendaring (SOGO). SOGO shows the event with a correct TZ at all times, and so does Google Calendar as I've been told from other attendees.
Here's the .ics plaintext as sent in the e-mail attachment (replaced DESCRIPTION and LOCATION with a sanitized text, otherwise it's authentic):
BEGIN:VCALENDAR PRODID:-//Microsoft Corporation//Outlook 10.0 MIMEDIR//EN VERSION:2.0 METHOD:REQUEST BEGIN:VTIMEZONE TZID:Europe/Amsterdam TZURL:http://tzurl.org/zoneinfo-outlook/Europe/Amsterdam X-LIC-LOCATION:Europe/Amsterdam BEGIN:DAYLIGHT TZOFFSETFROM:+0100 TZOFFSETTO:+0200 TZNAME:CEST DTSTART:19700329T020000 RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:+0200 TZOFFSETTO:+0100 TZNAME:CET DTSTART:19701025T030000 RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20200320T151315Z ATTENDEE;CN="Jan Kundrát";ROLE=REQ-PARTICIPANT;RSVP=FALSE:MAILTO:jan.kundrat@cesnet.cz ORGANIZER;CN="Cisco Webex":MAILTO:messenger@webex.com DTSTART;TZID=Europe/Amsterdam:20200323T100000 DTEND;TZID=Europe/Amsterdam:20200323T103000 LOCATION:https://jankundrat.my.webex.com/jankundrat.my/j.php?MTID=REDACTED TRANSP:OPAQUE SEQUENCE:1584717195 UID:e06e3a40-fd7c-4037-bd85-f27a09f61667 DESCRIPTION:\n\nJOIN WEBEX MEETING\nhttps://jankundrat.my.webex.com/jankundrat.my/j.php?MTID=REDACTED\n SUMMARY:Pravidelně REDACTED PRIORITY:5 CLASS:PUBLIC RRULE:FREQ=WEEKLY;WKST=SU;UNTIL=20200403;INTERVAL=1;BYDAY=MO,TU,WE,TH,FR END:VEVENT END:VCALENDAR