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In the past week or so (since the holidays, perhaps), meeting invites I am getting are not converting the time correctly. I can make it work by manually editing the ics file and changing the first TZID from America/Chicago to US/Central I. The screen SHOWS the correct time (image atached) , but it imports as it the time was UTC

If the DTSTART and DTEND are set to US/Central it doesn't work. The issue is it would seem that the user is creating these with the webmail version of Rackspace email, which he has done for YEARS with no issue. Did something change as of recent that would make this format no longer work?

I have to export every one of his meeting invites (and several other people not using rackspace) and make that change at the top to make this import correctly.

BEGIN:VCALENDAR PRODID:-//Webmail//emailsrvr.com calendar//EN VERSION:2.0 CALSCALE:GREGORIAN METHOD:REQUEST BEGIN:VTIMEZONE TZID:US/Central BEGIN:DAYLIGHT TZNAME:CDT DTSTART:20260308T020000 TZOFFSETFROM:-0600 TZOFFSETTO:-0500 RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=2SU;BYMONTH=3 END:DAYLIGHT BEGIN:STANDARD TZNAME:CST DTSTART:20261101T020000 TZOFFSETFROM:-0500 TZOFFSETTO:-0600 RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=1SU;BYMONTH=11 END:STANDARD END:VTIMEZONE BEGIN:VEVENT UID:6c27a39585ce5041bc8d09d947515f48f3366ce5 DTSTART;TZID=America/Chicago:20260109T123000 DTEND;TZID=America/Chicago:20260109T130000 DTSTAMP:20260108T115204Z CREATED:20260108T115203Z LAST-MODIFIED:20260108T115203Z ORGANIZER:MAILTO:REDACTED ATTENDEE;PARTSTAT=WAITING;CN=Mike Chytracek;CUTYPE=INDIVIDUAL;ROLE=OPT-PART

ICIPANT;RSVP=TRUE;X-NUM-GUESTS=2:MAILTO:REDACTED

SUMMARY:Test Invite DESCRIPTION:Testing\, is this 12:30pm CLASS:PUBLIC STATUS:CONFIRMED TRANSP:OPAQUE END:VEVENT END:VCALENDAR

Hi, my name is Rob and I have been using Thunderbird now for 3 months. Love it. There is a nagging issue. I have 2 gmail accounts. They both show events in the calendar. However one of my accounts when showing a reminder for an event, will not allow me to "Dismiss" it. Only solution is to close the dialog window. It shows the organizer as "Unknown organizer...." The other account works just fine. Any help is appreciated. Happy new year. Thx

Thunderbird v 141.0 64 bit on Windows 11 Hope you can help. I have my main Thunderbird calendar synced with a Google calendar. When I created the sync, the Thunderbird calendar was populated with all the events in the Google Calendar. When I created a new event in the Google Calendar, it appeared in the Thunderbird calendar. When I deleted a recurring event (that originally created in the Google calendar) from the Thunderbird calendar, it was deleted in the Google calendar. All good! But I have created multiple events in the Thunderbird calendar, but they are not appearing in the Google calendar.

Any thoughts? Thank you so much. Best, Stuart

Nach Update auf Release Kanal kein Geburtstagskalender mehr und Geburtstage werden nicht im Kalender angezeigt. Geburtstage in Kontakten vorhanden. Benutze keine Cloud und kein Google. Wie werden Geburtstage wieder im Kalender angezeigt?

Windows 11, Thunderbird 140, How to increase the"New Event" box and its Font

- Windows 10, the size is OK

- I have 'Googled" this problem and there seems to be no answer.

Kind regards: Gary Shaw

I don't know if something has changed since the last time I downloaded a .ics file into thunderbird or not.

I used to be able to load a .ics file directly into 'events' in my calendar. But something has changed. When I download the file now it gives it the name "Zul52mNeovl5. Which happens to be the name of the file I'm downloading from. So now I have 3 options of where to put the file - Events, Tasks or this filename. I can't find this file anywhere on my computer. How do I get rid of it?

Any Help would be appreciated.

Thanks

Thunderbird doesn't carry over calendar events alerts/reminders after updates to it or reboots generally, at least in Ubuntu (24.04).

I expected my events and reminders to carry over even after updates and computer reboots. They don't. I missed an important appointment because of that oversight. Thunderbird used to work.

I doubt that there's an existing fix for this, so Thunderbird Calendar needs to be updated so that Calendar events alerts don't disappear after updates or reboots. Meanwhile, I'm looking around for email and calendar apps that don't have this problem.

Thanks

Hi, my Thunderbird calendar reminders are coming up 4 hours after the meeting.

Running Kubuntu. System locale/timezone OK, TBird set to use system time (though manually making it the same didn't help). HW Clock matches system time. Pacific/Auckland.

Tried exporting all my appointments and re-importing them - no change.

Apparently it's possible to select different notifications or warnigs for events, it is possible to define one time by default, but also add anothers, but that does not work at all, it only accepts the one selected in calendar.alarms.eventalarmlen

Hello everyone,

like the title says, I want to set appointments in the calendar to private. I have shared calendars. Therefore, I need to be able to set some invitations to private.

In Outlook, it's no problem to set an accepted appointment to private, but in Thunderbird, this option only seems to be available for appointments I have created myself.

Hello,

I accept Teams events over the email, but cannot join them because the Join Meeting hyperlink is removed in the event's description. When I try to edit the event's description manually, the Edit option in the event's context menu (right click) is grayed out as can be seen in the attached picture. I also did not find any other way to change the event's description to insert the Teams meeting URL.

How do I fully edit events, including description and event dates? I need to have calendar events based on Teams meeting invitations work out-of-the-box. How do I achieve this?

Note: Exporting an individual calendar event would also help me solve this problem, but I don't think such a feature exists. If there would be, I would have exported the broken event, correct it manually, delete the old one from Thunderbird, open the event with Thunderbird and then add back the corrected version.

Thank you, Razvan Chisa

Hello,

I created an event in the Thunderbird calendar, inluded 30 e-mail addresses of which only 19 calendar invites were sent. It sent the invites in the order of the recipient list and just stopped at number 19..

What could be the problem here?

Thunderbird version 140.5.0esr on Ubuntu.

I'm new to Thunderbird. Today I installed and exported ALL my data from Outlook for Mac. I then used Olminator to successfully convert to eml and ics files for import to Thunderbird. The eml file import for my email worked great, as did my contacts. However, when I try importing the resulting ics file, I get this error:

If you’re seeing this message after snoozing or dismissing a reminder and this is for a calendar you do not want to add or edit events for, you can mark this calendar as read-only to avoid such experience in future. To do so, get to the calendar properties by right-clicking on this calendar in the list in the calendar or task view.

I've tried importing to the 'Home' calendar, and also creating a new calendar for the import but nothing works.

Any assistance would be greatly appreciated.

Thanks.

When using shared group calendars (as it's commonly found in small companies) all events that are marked as "public" are visible with details on personal calendars that are shared on some public calendar. Changing to "private" solves, but one need to remember doing this while creating an event.

It would be very useful to have an option for switching to "private by default" when creating a new event. Any possibility? Anyone else with the same need?