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11/27/25
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Comment on [#12773] Horde_Timezone unable to use non-ftp scheme to access database.
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> Hi, > > I have some more information. I do not see the bug in the kronolith > webgui itself. I also do not see the bug when I connect my Android to > ActiveSync. But, I DO see the bug when I download my ICS file and > import it into any client. The same goes for webdav. So the question > is what processing is done differently on an ActiveSync connection > than in a regular ICS file? How is timezone data swapped in > ActiveSync? > > For reference purposes, I downloaded my personal calendar from google > in ICS format. Looking at an individual event: > > BEGIN:VEVENT > DTSTART;TZID=America/New_York:20140221T140000 > DTEND;TZID=America/New_York:20140221T150000 > RRULE:FREQ=WEEKLY;BYDAY=FR > EXDATE;TZID=America/New_York:20140314T140000 > DTSTAMP:20140305T190333Z > UID:d1jg92liohlcpe4pc6nn3hl4is@google.com > CREATED:20140212T023446Z > DESCRIPTION: > LAST-MODIFIED:20140218T163947Z > LOCATION: > SEQUENCE:1 > STATUS:CONFIRMED > SUMMARY:Weekly One-on-One with Alice > TRANSP:OPAQUE > END:VEVENT > > I see a few things in contrast to an individual event as defined by > Horde's ICS file: > > BEGIN:VEVENT > DTSTART:20140220T190000Z > DTEND:20140220T200002Z > DTSTAMP:20140305T152044Z > UID:20140217112844.M7XYoy9TtQiwYOvfqo8h9w5@webmail.MYDOMAIN.COM > CREATED:20140217T162937Z > LAST-MODIFIED:20140304T194922Z > SUMMARY:Bob - Individual Weekly Meeting > CLASS:PUBLIC > STATUS:CONFIRMED > TRANSP:OPAQUE > RRULE:FREQ=WEEKLY;INTERVAL=1;BYDAY=TH > EXDATE;TZID=America/New_York:20140220T190000Z > END:VEVENT > > Is it proper for Horde to not put the timezone in the dtstart and > dtend fields? Right now Horde is saying the event occurs from 19:00 > Zulu to 20:00 Zulu instead of saying 14:00-15:00 America/New_York. > When Daylight Saving Time hits, Zulu time and America/New_York change > relative to one-another as there is no DST in UTC. > > I also noticed at the beginning of the ICS file that google calendar > gave, there is a section like this: > > BEGIN:VTIMEZONE > TZID:America/New_York > X-LIC-LOCATION:America/New_York > BEGIN:DAYLIGHT > TZOFFSETFROM:-0500 > TZOFFSETTO:-0400 > TZNAME:EDT > DTSTART:19700308T020000 > RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU > END:DAYLIGHT > BEGIN:STANDARD > TZOFFSETFROM:-0400 > TZOFFSETTO:-0500 > TZNAME:EST > DTSTART:19701101T020000 > RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU > END:STANDARD > END:VTIMEZONE > > This seems to pretty clearly define DST behavior for the calendar > software. This entire section is absent in the Horde ICS file. > > I am updating this ticket with this information following sending > same to the horde mailing list for discussion.
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