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chip.r Level 1 Level 1 (30 points)

I recently upgraded to OS 10.9 Mavericks and today I noticed that new iCal appointments coming in from WebEx are showing up 1 hour later than they should. It's almost like it thinks I'm in a different TZ or my PST/PDT calculation is off. I've double checked this and it's consistent. Here is a snapshot:

 

Calendar.png

 

Has anyone else seen this? Is the problem wi


MacBook Pro with Retina display, OS X Mavericks (10.9)
  • chip.r Level 1 Level 1 (30 points)

    Here is what the iCal looks like (with slight editing for privacy):

     

    BEGIN:VCALENDAR

    PRODID:-//Microsoft Corporation//Outlook 12.0 MIMEDIR//EN

    VERSION:2.0

    METHOD:REQUEST

     

    BEGIN:VTIMEZONE

    TZID:Pacific

    BEGIN:STANDARD

    DTSTART:20001105T020000

    RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=1SU;BYMONTH=11;BYHOUR=2

    TZOFFSETFROM:-0700

    TZOFFSETTO:-0800

    TZNAME:Standard Time

    END:STANDARD

    BEGIN:DAYLIGHT

    DTSTART:20000312T020000

    RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=2SU;BYMONTH=3;BYHOUR=2

    TZOFFSETFROM:-0800

    TZOFFSETTO:-0700

    TZNAME:Daylight Savings Time

    END:DAYLIGHT

    END:VTIMEZONE

     

    BEGIN:VEVENT

    CLASS:PUBLIC

    UID:<snip>

    DTSTAMP:20131029T182028Z

    SUMMARY:Brandle

    LOCATION:WebEx Online

    PRIORITY:5

    SEQUENCE:<snip>

    TRANSP:OPAQUE

     

    ORGANIZER:MAILTO:admin@webex.com

    ATTENDEE;ROLE=CHAIR;PARTSTAT=ACCEPTED;CN="admin@webex.com";RSVP=FALSE:mailto:<snip>

     

    DTSTART;TZID="Pacific":20131030T110000

    DTEND;TZID="Pacific":20131030T120000

     

    DESCRIPTION: <snip>

     

    BEGIN:VALARM

    ACTION:DISPLAY

    DESCRIPTION:REMINDER

    TRIGGER:-PT900S

    END:VALARM

     

    END:VEVENT

     

    END:VCALENDAR

  • jonnyadcd Level 1 Level 1 (0 points)

    Hi Chip:

     

    Any luck getting this resolved?

     

    I have the same issues and it's a pain.

  • chip.r Level 1 Level 1 (30 points)

    It seems to have resolved itself. I'm not sure what did it, though.

  • jonnyadcd Level 1 Level 1 (0 points)

    Cool. Thanks Chip

  • chip.r Level 1 Level 1 (30 points)

    Argh, it has just shown up again. Even though my computer and Caledar think I'm in PST (2pm), it's showing the calendar appointments as if I'm in Mountain (1pm), I think.

     

    Calendar.png

     

    <sigh>

  • chip.r Level 1 Level 1 (30 points)

    My theory is that it has something to do with the window between old and new DST. I think once we pass the date when the DST used to start/end the bug will resolve itself.

  • chip.r Level 1 Level 1 (30 points)

    I just ran a test with my colleagues. Some have the meeting show up at the right time in the calendar view and others do not. I cannot find a Date and Time setttings or Calendar settings or version of OS that is a common denominator.

     

    The way the attached image is showing, it appears that Calendar thinks the meeting was set during PST (11:30 am), not PDT (12:30).

     

    Fullscreen_3_24_14__2_05_PM.png

     

    Looking at my WebEx settings, it also says that the timezone is "Pacific Daylight Time" (like my computer):

     

    Preferences_-_Cisco_WebEx_Meetings.png

    BEGIN:VCALENDAR

    PRODID:-//Microsoft Corporation//Outlook 12.0 MIMEDIR//EN

    VERSION:2.0

    METHOD:REQUEST

     

     

    BEGIN:VTIMEZONE

    TZID:Pacific

    BEGIN:STANDARD

    DTSTART:20001105T020000

    RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=1SU;BYMONTH=11;BYHOUR=2

    TZOFFSETFROM:-0700

    TZOFFSETTO:-0800

    TZNAME:Standard Time

    END:STANDARD

    BEGIN:DAYLIGHT

    DTSTART:20000312T020000

    RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=2SU;BYMONTH=3;BYHOUR=2

    TZOFFSETFROM:-0800

    TZOFFSETTO:-0700

    TZNAME:Daylight Savings Time

    END:DAYLIGHT

    END:VTIMEZONE

     

     

    BEGIN:VEVENT

    CLASS:PUBLIC

    UID:M3I8E2B71RMHY03P8YZA4V1HJE-1QRR

    DTSTAMP:20140324T210255Z

    SUMMARY:Testing 1,2,3...

    LOCATION:WebEx Online

    PRIORITY:5

    SEQUENCE:1026836833

    TRANSP:OPAQUE

     

     

    ORGANIZER:MAILTO:admin@webex.com

    ATTENDEE;ROLE=CHAIR;PARTSTAT=ACCEPTED;CN="admin@webex.com";RSVP=FALSE:mailto:

  • wpbond Level 1 Level 1 (0 points)

    I have this same issue with WebEx meeting invites showing up wrong in iCal.  On other calendar programs the same WebEx invites are set to the correct times.  The problem is definitely related to the recent switch from Standard time to Daylight Savings time.  iCal does not switch the invite to Daylight Savings time and instead still interprets it as being at Standard time (thus the one hour difference in the time on your calendar).

     

    After looking at the text of the WebEx invites and invite files from other meetings, I found you can manually fix invites by editing the .ics files.

     

    If you remove ";BYHOUR=2" from the two RRULE lines in invite files (similar to the two RRULE lines in the above invite text example), the invite will show up in iCal correctly and it still shows up correctly on other calendar programs too.  Perhaps iCal handles this argument incorrectly or maybe WebEx is not using it correctly, but since these invites appear correctly in other calendar programs, I think the problem lies with iCal.

     

    You can test this by opening the invite (.ics) files in TextEdit, then removing this setting in the two locations, and then using Save... to resave your invite file.  Make sure to keep a .ics file extension.  Opening the invite in iCal should allow it to show up correctly.

  • polarbreeze1 Level 1 Level 1 (5 points)

    "The way the attached image is showing, it appears that Calendar thinks the meeting was set during PST (11:30 am), not PDT (12:30)."

     

    I have this same problem and after extensive testing I can confirm that it is indeed something to do with handing of daylight saving time. Apple works OK with itself. Webex works OK with Windows. However, Apple misbehaves when interpreting a Webex invite.

  • heebeegeebees Level 1 Level 1 (0 points)

    Hello,

     

    I was wondering if there was a resolution to this calendar issue.  This morning I was sent a WebEx invite for 8:30am to 9:30am PST.  When I click on the ics file, it displays as 9:30am to 10:30am PST on my Mac Calendar. 

     

     

    Thanks.

  • mpantoja Level 1 Level 1 (0 points)

    This is happening with invitations generated by Lotus Notes as well. Calendar is interpreting the invite time as EST instead of EDT, setting all of the times back by an hour. Google Calendar and Thunderbird properly interpret the .ics.

     

    Oddly enough, despite being in EDT, the event shows the EST time in parentheses, as if there is an additional, concurrent time zone. That makes sense if Calendar supports parallel universes, but my vote would be to get time zones working properly first.

     

    iCal_DST_bug_042214.png

  • JMC-88 Level 1 Level 1 (5 points)

    Has anybody heard from Apple on this?  Is there some obscure resolution other than updating every invite?

  • heebeegeebees Level 1 Level 1 (0 points)

    I went to the Apple Genius bar the other day and found no resolution.  We tested bringing in a WebEx meeting on my Apple calendar which loaded at the wrong time.  We then brought the .ics file in a version of Outlook he had on his Mac where it worked properly.

     

    The person who helped me was very knowledgable and he ruled this as an official bug with the Apple Calendar.  His only suggestion was hoping a near future software update would fix this issue.  Hard to work this way.

     

    If you find something, please let me know. 

  • JMC-88 Level 1 Level 1 (5 points)

    Just off the phone w/ Apple support....they are getting Engieering involved.  will keep you posted

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