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IDProjectCategoryView StatusDate SubmittedLast Update
0006133SOGoBackend Calendarpublic2025-06-26 07:512025-08-01 10:11
Reporterjordi Assigned Toqhivert  
PrioritynormalSeveritymajorReproducibilityalways
Status feedbackResolutionopen 
Product Version5.12.1 
Summary0006133: Timezone updates not being taken into account
Description

The executive summary:

  • One of our Brazilian users scheduled a meeting at 11:00 Sao Paulo time (16:00 CEST).
  • People looking at the event via the SOGo web interface saw the event at 15:00 CEST
SUMMARY:Meeting
DTSTART;TZID=America/Sao_Paulo:20250624T110000
DTEND;TZID=America/Sao_Paulo:20250624T120000

If you inspect the ics for the meeting that was shared by Thunderbird, you can see it included the entire historical timezone changes for Sao Paulo since 1914.

Is it possible SOGo is unable to parse the entire thing and ends up not knowing Brazil stopped doing DST in 2019?

These are the last entries in the Sao Paulo section:

BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:20181104T000000
RDATE:20181104T000000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:20160221T000000
RRULE:FREQ=YEARLY;UNTIL=20190217T000000;BYMONTH=2;BYDAY=3SU
END:STANDARD
END:VTIMEZONE
TagsNo tags attached.

Activities

jordi

jordi

2025-06-26 07:52

reporter   ~0018284

Note that we have the same problem with a Chilean user, so this isn't specific to Sao Paulo.
qhivert

qhivert

2025-07-08 14:01

administrator   ~0018300

Hello, could you give me the full ics file?
When I create an event on sogo there is no problem and when importing one by modifying the VTIMEZONE of .ics, sogo fixes it by itself.

SOGo use the iana databases for its timezone -> https://www.iana.org/time-zones
and then we use this -> to convert in ics part -> https://github.com/libical/vzic
pabelenda

pabelenda

2025-07-15 12:47

reporter   ~0018302

Hi Quentin!

I've got the ics from that motivated the report and anonymized it.

Hope it is useful!

calendar.ics (11,373 bytes)    
BEGIN:VCALENDAR
PRODID:-//Mozilla.org/NONSGML Mozilla Calendar V1.1//EN
VERSION:2.0
METHOD:REQUEST
BEGIN:VTIMEZONE
TZID:America/Sao_Paulo
X-TZINFO:America/Sao_Paulo[2024b]
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-030628
TZNAME:America/Sao_Paulo(STD)
DTSTART:19140101T000000
RDATE:19140101T000000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:19311003T110000
RDATE:19311003T110000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:19320401T000000
RDATE:19320401T000000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:19321003T000000
RDATE:19321003T000000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:19330401T000000
RDATE:19330401T000000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:19491201T000000
RDATE:19491201T000000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:19500416T010000
RDATE:19500416T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:19501201T000000
RDATE:19501201T000000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:19510401T000000
RDATE:19510401T000000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:19511201T000000
RDATE:19511201T000000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:19520401T000000
RDATE:19520401T000000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:19521201T000000
RDATE:19521201T000000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:19530301T000000
RDATE:19530301T000000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:19631023T000000
RDATE:19631023T000000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:19640301T000000
RDATE:19640301T000000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:19650131T000000
RDATE:19650131T000000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:19650331T000000
RDATE:19650331T000000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:19651201T000000
RDATE:19651201T000000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:19660301T000000
RDATE:19660301T000000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:19661101T000000
RDATE:19661101T000000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:19670301T000000
RDATE:19670301T000000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:19671101T000000
RDATE:19671101T000000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:19680301T000000
RDATE:19680301T000000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:19851102T000000
RDATE:19851102T000000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:19860315T000000
RDATE:19860315T000000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:19861025T000000
RDATE:19861025T000000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:19870214T000000
RDATE:19870214T000000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:19871025T000000
RDATE:19871025T000000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:19880207T000000
RDATE:19880207T000000
END:STANDARD
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:19890129T000000
RDATE:19890129T000000
END:STANDARD
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:19900211T000000
RDATE:19900211T000000
END:STANDARD
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:19910217T000000
RDATE:19910217T000000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:19881016T000000
RRULE:FREQ=YEARLY;UNTIL=19911020T000000;BYMONTH=10;BYDAY=3SU
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:19920209T000000
RDATE:19920209T000000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:19921025T000000
RDATE:19921025T000000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:19930131T000000
RDATE:19930131T000000
END:STANDARD
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:19940220T000000
RRULE:FREQ=YEARLY;UNTIL=19950219T000000;BYMONTH=2;BYDAY=3SU
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:19931017T000000
RRULE:FREQ=YEARLY;UNTIL=19951015T000000;BYMONTH=10;BYDAY=3SU
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:19960211T000000
RDATE:19960211T000000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:19961006T000000
RDATE:19961006T000000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:19970216T000000
RDATE:19970216T000000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:19971006T000000
RDATE:19971006T000000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:19980301T000000
RDATE:19980301T000000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:19981011T000000
RDATE:19981011T000000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:19990221T000000
RDATE:19990221T000000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:19991003T000000
RDATE:19991003T000000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:20000227T000000
RDATE:20000227T000000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:20001008T000000
RRULE:FREQ=YEARLY;UNTIL=20011014T000000;BYMONTH=10;BYDAY=2SU
END:DAYLIGHT
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:20021103T000000
RDATE:20021103T000000
END:DAYLIGHT
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:20031019T000000
RDATE:20031019T000000
END:DAYLIGHT
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:20041102T000000
RDATE:20041102T000000
END:DAYLIGHT
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:20051016T000000
RDATE:20051016T000000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:20010218T000000
RRULE:FREQ=YEARLY;UNTIL=20060219T000000;BYMONTH=2;BYDAY=3SU
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:20061105T000000
RDATE:20061105T000000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:20070225T000000
RDATE:20070225T000000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:20071014T000000
RDATE:20071014T000000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:20080217T000000
RRULE:FREQ=YEARLY;UNTIL=20110220T000000;BYMONTH=2;BYDAY=3SU
END:STANDARD
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:20120226T000000
RDATE:20120226T000000
END:STANDARD
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:20130217T000000
RRULE:FREQ=YEARLY;UNTIL=20140216T000000;BYMONTH=2;BYDAY=3SU
END:STANDARD
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:20150222T000000
RDATE:20150222T000000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:20081019T000000
RRULE:FREQ=YEARLY;UNTIL=20171015T000000;BYMONTH=10;BYDAY=3SU
END:DAYLIGHT
BEGIN:DAYLIGHT
TZOFFSETTO:-020000
TZOFFSETFROM:-030000
TZNAME:America/Sao_Paulo(DST)
DTSTART:20181104T000000
RDATE:20181104T000000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETTO:-030000
TZOFFSETFROM:-020000
TZNAME:America/Sao_Paulo(STD)
DTSTART:20160221T000000
RRULE:FREQ=YEARLY;UNTIL=20190217T000000;BYMONTH=2;BYDAY=3SU
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
CREATED:20250611T192941Z
LAST-MODIFIED:20250611T193820Z
DTSTAMP:20250611T193820Z
UID:00aab58e-40d7-4b93-b869-0648b7d2147b
SUMMARY:State of the DRM Scheduler and current improvement efforts
DTSTART;TZID=America/Sao_Paulo:20250624T110000
DTEND;TZID=America/Sao_Paulo:20250624T120000
TRANSP:OPAQUE
LOCATION:https://aaaaaaaa.igalia.com/bbbbbbbbbbb
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;CN=aaaaaa aaaaaaa;CUTYP
 E=INDIVIDUAL;RSVP=TRUE:mailto:aaaaaaaa@igalia.com
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;CN=bbbbbbb bb;RSVP=TRUE
 :mailto:bbb@igalia.com
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;CN=ccccccc cccc ccccc;R
 SVP=TRUE:mailto:ccccc@igalia.com
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;CN=ddddd dddddd;RSVP=TR
 UE:mailto:ddddddd@igalia.com
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;CN=eeee eeeee eeeeeee;R
 SVP=TRUE:mailto:eeeeee@igalia.com
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;CN=fffff fffff;RSVP=TRU
 E:mailto:ffffff@igalia.com
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;CN=gggg ggggggg;RSVP=TR
 UE:mailto:gggg@igalia.com
ORGANIZER;PARTSTAT=NEEDS-ACTION;CN=iiiii iiiiiii;SENT-BY="mailto:iiiiiiiiii
 i@igalia.com";CUTYPE=INDIVIDUAL:mailto:iiiii@igalia.com
CLASS:PUBLIC
END:VEVENT
END:VCALENDAR
calendar.ics (11,373 bytes)   
pabelenda

pabelenda

2025-07-29 11:58

reporter   ~0018323

I'm going to attach another ics.

I'm able to reproduce this consistently. I import the event using Thunderbird. It shows at the right time (10:00 America/Sao Paulo -> 15:00 CEST) but only on thunderbird. SOGo web interface shows the event starting at 14:00 CEST. The email notification I got also shows the event starting at the wrong time.

Start Thursday, July 10, 2025 - 14:00
End Thursday, July 10, 2025 - 14:30

Hope this helps.

calendar-2.ics (1,081 bytes)    
BEGIN:VCALENDAR
CALSCALE:GREGORIAN
PRODID:-//Ximian//NONSGML Evolution Calendar//EN
VERSION:2.0
METHOD:REQUEST
BEGIN:VTIMEZONE
TZID:America/Sao_Paulo
X-LIC-LOCATION:America/Sao_Paulo
BEGIN:STANDARD
TZNAME:-03
TZOFFSETFROM:-0200
TZOFFSETTO:-0300
DTSTART:20130217T000000
RRULE:FREQ=YEARLY;UNTIL=20190217T020000Z;BYDAY=SU;
 BYMONTHDAY=17,18,19,21,22;BYMONTH=2
END:STANDARD
BEGIN:DAYLIGHT
TZNAME:-02
TZOFFSETFROM:-0300
TZOFFSETTO:-0200
DTSTART:20181104T000000
END:DAYLIGHT
END:VTIMEZONE
BEGIN:VEVENT
UID:00302cb419598f48325c749240833a04c4cdb6f4
DTSTAMP:20250710T000756Z
DTSTART;TZID=America/Sao_Paulo:20250710T100000
DTEND;TZID=America/Sao_Paulo:20250710T103000
SEQUENCE:2
ORGANIZER;CN=Aaaaaa Aaaaaaaaaaa:mailto:aaaa@igalia.com
ATTENDEE;CUTYPE=INDIVIDUAL;ROLE=REQ-PARTICIPANT;PARTSTAT=ACCEPTED;
 RSVP=FALSE;CN=Bbbbb Bbbbb:mailto:bbbbbb@igalia.com
SUMMARY:Ccccccccc ccccccc
LOCATION:https://dddddddd.dddddd.ddd/eeeeeeeeeeeeeeee
TRANSP:OPAQUE
STATUS:CONFIRMED
URL:https://ffffffff.ffffff.fff/gggggggggggggggg
CLASS:PUBLIC
END:VEVENT
END:VCALENDAR
calendar-2.ics (1,081 bytes)   
qhivert

qhivert

2025-08-01 10:11

administrator   ~0018324

Hello,
I've made a "fix" for that -> https://github.com/Alinto/sogo/commit/244d1388eb00c060c5302e5bfd997fd397820bc0
The bad news is it won't fix the current events because the problem is when the event is written into SOGo db, the startdate is "wrong". But new event should be ok.

Notice the quotes around fix and wrong.

In the ics files, the timezone part should be like this

BEGIN:VTIMEZONE
TZID:America/Sao_Paulo
LAST-MODIFIED:20250324T091428Z
X-LIC-LOCATION:America/Sao_Paulo
BEGIN:STANDARD
TZNAME:%z
TZOFFSETFROM:-0300
TZOFFSETTO:-0300
DTSTART:19700101T000000
END:STANDARD
END:VTIMEZONE
  • TZOFFSETFROM is the local time offset from GMT when daylight saving time is in operation
  • TZOFFSETTO is the local time offset from GMT when standard time is in operation.

As there is no more daytime saving (DTS) for the timezone, notice that both values are the same -0300.

When you create the event in SOGo, no problem. When you import your example into SOGo, no problem as well because SOGo will replace the VTIMEZONE with its info. However, when using caldav, SOGo will keep the original VTIMEZONE to not alter the file.
When creating the event with thunderbird or importing your example into thunderbird, the VTIMEZONE infos are still using the DTS and you found nowhere inside the ics files, the correct value for TZOFFSETFROM and TZOFFSETTO.

When reading the file, sogo will found the timezone America/Sao_Paulo and will read get the info in VTIMEZONE, hence the "wrong" startdate written in the database.

I'm assuming that thunderbird only read the timezone name and then fetch directly into their timezone info/db instead of reading the VTIMEZONE.

That's my "fix" for SOGo. Now Sogo will read its own timezone info (always using the last iana https://www.iana.org/time-zones) instead of reading the VTIMEZONE.

Issue History

Date Modified Username Field Change
2025-06-26 07:51 jordi New Issue
2025-06-26 07:52 jordi Note Added: 0018284
2025-07-08 14:01 qhivert Note Added: 0018300
2025-07-08 14:01 qhivert Assigned To => qhivert
2025-07-08 14:01 qhivert Status new => feedback
2025-07-15 12:47 pabelenda Note Added: 0018302
2025-07-15 12:47 pabelenda File Added: calendar.ics
2025-07-29 11:58 pabelenda Note Added: 0018323
2025-07-29 11:58 pabelenda File Added: calendar-2.ics
2025-08-01 10:11 qhivert Note Added: 0018324
2025-08-01 10:11 qhivert Status feedback => assigned
2025-08-01 10:11 qhivert Status assigned => feedback