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Is there any way to select other than the "home" calendar as standard? Have tried to change order in the calendar setting, but when I accept a meeting invitation it always place the meeting in the home calendar. I would like to select the syncronized Google calendar.

The syncronization with Google calender works perfect when manual enter something.

Best regards /Mike

I added a CalDav calendar to Thunderbird that is hosted on a Nextcloud instance. While the calendar view looks decent, the tasks view is completely bloated with old, already completed tasks, some even from 2023. I selected "open tasks" or "current tasks" (? German translation) from the menu on the left side. It's not that all of the tasks are misclassified: When I go to completed tasks, there are hundreds of (correctly) completed tasks listed, but still.

Furthermore, the sub tasks of a main task are not grouped. Is this a known limitation or am I missing some configuration?

In general, as of now, the task view is pretty unusable for me. Anything that I can do to help debugging this?

Dear all, I have a couple of calendars on the disk as network calendars (file:///...ics) with offline support, and I just realized that I cannot delete any event. These calendars are not read-only, I can see the option delete, both with right-click on the event and double-click to edit the event, but after pressing delete, the event remains on the calendar. Just pressing the delete button on the keyboard after selecting the event has the same behaviour. If I try shift the events from one calendar to the other, they do appear in the new calendar, but they do not disappear from the old. I have restarted Thunderbird, and also tried this on another computer with the same results. Both szstems are Windows 11, Th underbird 115.10.1 I would be very grateful for any suggestions

Dear all, is there an option to have Thunderbird sync network calendars once upon start? I have a couple of large network calendars and repetitive syncing causes performance problems, but on the other hand, if I set sync to Manual, Thurderbird does not sync upon start and shows only the events that had been cached locally (off-line) in the past, but not any events meanwhile added to the network calendar by other clients. Thus, I either have to remember to manually sync once every calendar after each program start, or I have to activet syncing every xx minutes, which causes the programm to periodically freeze for some time (during syncing). Is there any good solution to this? Is there maybe an option in the config editor "sync upon start"? Thank you very much.

Thunderbird is is displaying 24hr in emails and calendar but the system is set not to used 24hr I'm running Linux Mint 19.3 (64-bit) Thunderbird 102.11.0 (64-bit).

I'm having a really annoying problem where Calendar events, even tho they have reminders/notifications properly set up, just don't actually trigger these notifications when they're supposed to.

Are there any logs or debug settings or anything I can do to troubleshoot this further? All of the direct UI settings are definitely set up correctly. And there are other events for which notifications work fine, so it's not that notifications are broken altogether

Will there ever be an option in the calendar to schedule links to video conferencing platforms like zoom or teams or google meet?

Lot's of other 'smart' calendars have this as an option. For example, when I use google calendar on a browser there is a zoom plugin so when I schedule an appointment it automatically generates a meeting invite for the attendees and put the meeting on my zoom app.

I know that this is probably reliant more on the companies [Google, Microsoft, Zoom] to make an extension for this, but it would be great if this could be implemented in the future.

Hello! I am facing the issue with time zone translations. Here is what I do. First, I create event on web-interface of the google calendar. That account is linked to TB's calendar. This calendar has settings for my timezone as in the first screenshot, that is GMT+3 for Kyiv, Ukraine. It is actually GMT+2 + daylight saving hour in effect. Country is also set to Ukraine. Next, my Windows 11 system is set to set time and timezone automatically, region - Ukraine. It displays UTC+2 Helsinki, Kyiv,... I guess it's Windows settings display quirk, because time is correct and WSL console shows

~$ date -R Thu, 18 Apr 2024 18:59:25 +0300

My TB's calendar is set to have system's timezone as in 3rd screenshot.

Now if I see my event in TB calendar, it is placed one hour later, say 9 am event starts at 10. So reminders also come hour later. Also strange thing is that event properties in TB show correct time like 9:00 till 10:40, but for some strange timezone Europe/Zaporozhye, as in 4th picture.

However, if I set TB's calendar manually to Europe/Kiev (which should be Kyiv, but that's another story), then events are shifted hour up to their right place, 9 am. So this is my issue: when I set calendar forcibly to Kyiv timezone, it does translate it right. When I ask calendar to rely on system's timezone, which indeed is also Kyiv, then I get one hour behind.

The attendees I select are not receiving their invites to my calendar events. My version of Thunderbird (TB) is 115.9.0 (64-bit). I check my sent folder and it does not send. Older versions of TB, the Calendar invite worked and I can see it was sent from the sent folder. Please note that I am not tech savvy and I need a solution that an average person can employ. If someone has a solution, please get it in step by step instructions and assume I know next to nothing.

There is no way to create a recurring task in Thunderbird - it seems like they are simply not supported. I've set the synchronization with my Google tasks but when trying to finish the recurring task through TB the synchronization error appears like I've updated the task on the server. Are there any plans to support recurring tasks?

Clocks went back one hour in Santiago, Chile last week and Thunderbird does not recognise the new time, although Windows (10) does.

The calendar line show the current time to be one hour ahead of the time on Windows; i.e., the Windows time has updated correctly, but the calendar time has not. Adding non-local events to the calendar causes them to be displayed one hour ahead of the correct time.

Changing the calendar setting to use the system timezone, or use America/Santiago has no effect that I can see.

Typing Date() in the error console of Thunderbird gives the correct time, as per Windows.

This also happened in the last time change here in Chile.

How can I fix the Calendar to see the same time as Thunderbird and Windows?

Hello, In Thunderbird (Vers. 115.9, OS Linux Zorin OS 17) I can integrate a calendar from a Mailbox.org account as described here(https://kb.mailbox.org/de/privat/adressbuch-und-kalender/caldav-clients-outlook-thunderbird-macos-evolution-kontact/). Everything works fine. If I now want to import a 2nd calendar from another mailbox.org account, this does not work. I can go through the process normally, but the 2nd calendar is not displayed. Does anyone have the same problem? It can't be that Thunderbird is not able to integrate 2 calendars ? Many thanks for your help

Hi, I have a nextcloud setup at home on my internal network. Whenever I am away from that network, Thunderbird bombards me with error messages because it cannot sync a specific calendar (An error occurred when writing to the calendar Contact birthdays! Please see below for more information.) This is the first calendar on the list of calendars so I think it just happens to be that one that causes the error. What I would like to do is have Thunderbird detect that it isn't on my home wifi and not sync the calendars. Is this possible? Thanks!

I selected 'New Calendar' and my personal and shared calendar disappeared. I selected show all calendars but they are gone. I rebooted pc but still nothing there. Thunderbird 115.9.0

On my new laptop I can't get convert to task working. When I click on this option nothing happens. Convert to event works fine.

This functionality works fine on my desktop PC

New version of TB and again event colors are gone.

I used the patch Todd gave me in the previous topic with the same name, archived. It worked after again half an hour of useless work.

When will TB include this in standard coding?

Something changed at some point in time with the calendar file. When I started using Thunderbird I was able to set up entries in the calendar file and give them names and an associated colour. I can't seem to do that any longer. Eg. I set up entries for Birthdays which showed on the calendar as purple and Anniversaries where green. I can't do that anymore. Was that ability removed at some time?

Another situation I came across was importing .ics files. The method changed and now you have to open a file. What it does is ask where you want to put the contents, ie as an Event or a Task. I tell it where I want it put . But when I check the entry it shows as the .ics file and not as an Event or Task. Then I have a terrible time trying to remove it. Nothing happens when I tell the program that the Event/Task is completed. HELP!

When typing up event comments, in Calendar, the spellchecker highlights incorrect spellings but does not offer alternatives when the word is right-clicked, as the email composer does. This has become rather annoying and one other user asked the same question in November 2023, but never got a response. That particular thread has been archived, so I can't add to it. Can the developers please look into this?

Whenever I enter a new calendar event in Thunderbird, the calendar always defaults the event start time to 15 minutes after the hour, regardless of what time I'm making the new calendar entry. Is the new event start time a default setting and if so, how do I change the default to start new events on the hour, meaning HH:00 and not HH:15 which is what Thunderbird always defaults to? I use Thunderbird v115.9.0 (64-bit) for Windows, and the computer runs Windows 10 Home, v22H2, build 19045.4170. Please advise. Thank you.

Hi lads,

I used TB for many years but only now started using it in office. I have a problem with the calendar function however which I have to use now. I'd like to have an audio alert and/or window pop-up forcing interaction for any event in my calendar, let's say 15 min ahead. I tend to overlook the small notification pop-ups in the bottom right corner of the screen since they also vanish automatically after a few seconds.

I can get these small bottom right corner pop-ups to appear for any event by using the global notification preferences in the Edit Calender options. However, I can not globally activate an audio alert or a window requiring interaction for upcoming events. I can just activate a reminder manually for each and every event, which is a lot of work, naturally. So, is there a way to activate a reminder (not a notification, which is the bottom right pop up I assume) globally for any event in a calendar?

Can also be done by an add-on or by manually changing source files, if anyone has suggestions in this direction.

Thanks in advance, trashmaster