All Products Community Forum

I have Thunderbird v140.3.1esr (64-bit) on Windows 10. I made a new calendar based on a google calendar. I have 2 google calendars so I am trying to import the second one from an .ics file exported from Google calendar, but each time I try it gives me an error message.

An error occurred when writing to the calendar MyMotog! Please see below for more information. Modification_failed 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.

It has installed itself as a second calendar in Thunderbird, but I've no idea why I can't import the one into the other?

Hi all,

in my calendar, I have an appointment which was set when the person was in Cape Verde, and the time zone there was set to Atlantic/Cape_Verde.

Now, Thunderbird obviously doesn't know about that time zone, it's also not available in the picker (when creating a new appointment).

The appointment in this case gets shown in the calendar as starting at 13.10h, when it should be 10.10h (as I'm in Europe/Berlin).

How do I achieve that? I'm on Windows, TBird 142.0

Thx in advance, Cheers, Peter.

Hi all

I have an issue (timezone-related) that I can't pin down to either Thunderbird or Nextcloud - hoping someone here can give me an idea.

Definitions

NC = NextCloud TB = Thunderbird

Background

My calendar is hosted on NC via caldav and there is normally no issue with event scheduling when doing so from TB or vice versa from NC.

I have lately been using the appointment scheduling function in the NC web ui. You create an event and then tag a set of day/time values that a meet participant can choose for the meet.

eg. I can set the following as my available times:

Tues 2pm to 4pm Wed 11am to 3pm

Once the creation of the appointment is completed, a link is provided which you can give to meet participants who can then choose a time slot from the proposed list for the meet.

eg. someone might choose:

Wed 2.30pm-3pm

... from the list provided

Once the recipient chooses their time, the appointment is confirmed for the selected date/time and a meet request is automatically placed in your NC calendar.

Via email:

1. the meet participants receive the meet request and acknowledge/confirm it 2. you receive a standard meet confirmation email in TB from each participant 3. you receive an email (incl. an ics file) from NC stating that the meet (and its selected date/time) has been booked

I believe this solution is similar to what TB Appointment is aiming for.

Issue:

My timezone is gmt+1 but I mostly deal with participants in gmt+2. I do all the scheduling based on my timezone and the meet request that is automatically placed in my NC cal, has the correct time as per what the participant selected.

eg.

If the participant (from their viewpoint) selected 4pm gmt+2, it will show up in my NextCloud cal at 3pm gmt+1. This is correct.

TB should now sync that entry from NC - it does, but the TB cal entry shows as 5pm gmt+1 instead of 3pm gmt+1.

In addition, an ics file is included with booking confirmation email (received earlier and mentioned above) and this ics file also has the incorrect time on it as well (at least as indicated on an import into TB).

Now if TB was ref'ing a separate cal, I could understand that there might be a discrepancy between NC and TB. But this is actually the same calendar, just shared by NC to TB via caldav.

Additional:

• My NC profile timezone is set as gmt+1 in the NC web ui
• My TB timezone in Settings -> Calendar is set to "Use system timezone"
• My system timezone is set to WEST (western european summer time) = gmt+1

All of the above appear to deliver exactly the same time but there's clearly some misstep between NC, TB and my system. I'm doing additional testing to see if my local system timezone has any impact on this - will advise.

Any ideas are welcome.

Regards, Robby

I've been using Thunderbird on desktop for some time.

Just installed Thunderbird on my Android phone, I can't find the organise, convert to event / task setting.

Is this not available?

Thunderbird Calendar is not automatically loading events when TB starts. I must delete & import one of my calendar's for it to load all past & future events on all my calendars? I use the .ics format.

FYI, I recently upgraded from an old version of Thunderbird to the current version. Thanks for any help.

I have a gmail calendar added to Thunderbird and the Calendar main window is populating as expected. However, the pop-up reminder window will not populate with any of those entries. What did I miss??

Cheers Mike

Currently, the latest version is 140.20esr. Since the middle of last week, there has been a phenomenon where unsolved and unprocessed appointments set in the calendar settings are no longer displayed in the next day's alerts.

I use TB as a personal home email client & calendar. All the prenamed Category labels for events are primarily oriented to business use. If there a way to rename the Categories and apply a color that I want?

I have enabled my Google calendar in Thunderbird. It seems to be displaying scheduled (as opposed to all-day) events twice in the calendar window. Why should this be?

An error occurred when writing to the calendar Verjaardagen! Please see below for more information.

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.

The calendar is marked as read-only because it contains birthday's and reminders cannot be dismissed.

What is the proper way handle a anniversary calender and reminders?

When I add/edit a calendar event, it only allows for 1 reminder. I often set up multiple reminders for an event, especially if it is scheduled for several weeks in the future. I want to set up a reminder for '2 weeks before', '2 days before', and '12 hours before', but I can't find where to add the additional reminders.

Recently the reminders from my calendar in Thunderbird have failed to show, as if there is a setting that has been turned off. How can I turn them back on again? Thank you. Update: I found for half a day the reminders returned, but they disappeared again. Does anybody have any idea as to what is going on?

Cannot dismiss reminder or set the snooze. Get the following:

Status Code: 2147500037, The request cannot be processed.

An error occurred when writing to the calendar charles.novak@gmail.com! Please see below for more information.

Server Replied with 400 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.

Hi,

Does anyone have an issue with Thunderbird not displaying Teams invites correctly. Would be useful to have a solution.

Attached a screen shot and redacted the some of it for obvious reasons.

Thanks in advance

R

Meine Kalendererinnerungen werden nicht mehr ausgeführt seit dem letzten Update. Auch neue Einträge mit Erinnerungsfunktion werden nicht ausgeführt. Das alles passiert erst seit dem letzten Update auf Version 140.2.0esr (64-Bit) auf einem Windows 11 64bit. Im Fehlerbehebungsmodus geht es jedoch.

I am trying to add an invitee to an email done from the calendar. When I attempt to add an invitee, everything appears in the user interface to be OK. When I send the email, nothing is received by the invitee. I have even sent email to myself as an invitee and that fails as well. I found the attached error in a troubleshooting log.

I have scoured the internet looking for a solution but couldn't find one. Hopefully you can tell me how to proceed so that I can get this feature to work. I haven't even had Thunderbird for a year and now this. I have donated $100 to you so hopefully you won't see me as a freeloader who wants to complain.

Thanks

I've moved to a new computer, and added Thunderbird to it - same as old PC. Also, I have multiple email addresses. When I add an entry to the calendar, it wants to associate the even with an email address I'd rather not. How do I change a setting to use the preferred email account?