Migrate Outlook into Thunderbird?

[Bo Berglund]

On Fri, 14 Jul 2023 15:41:49 -0400, Sarunas Burdulis
<sarunas at math.dartmouth.edu> wrote:

>On 2023-07-14 14:41, Bo Berglund wrote:
>> Now I am struggling against the ThunderBird brain-dead date display
>> in the mail list... It displays in MM/DD/YYYY format, which is very
>> counter-intuitive.
>> 
>> I have googled and read about 25 different webpages to try and fix
>> this to be YYYY-MM-DD instead, but to no avail.
>> 
>> The LOcale has been set to Stockholm Sweden in LinuxMint and my My
>> LinuxMint displays the current time correctly on its clock so this
>> must be TB specific...
>
>Stockholm Sweden looks more like a timezone, than locale. Locale would 
>probably be sv_SE. In any case, TB can be set to override date and time 
>format set by the system. I also don't like the backwards date format, 
>but need to use en_US locale, so following this how-to worked in my case 
>(Ubuntu and Plasma Desktop):
>
>https://support.mozilla.org/en-US/kb/customize-date-time-formats-thunderbird
>
>NB: for whatever reason they say to go to "? > Preferences", but it's 
>actually "? > Settings".

Right,
I found a slightly different howto here:
https://enterprise.thunderbird.net/manage-updates-policies-and-customization/thunderbird-preferences-enterprise/customize-thunderbirds-date-and-time-formats

which basically is the same as your link except it is a bit more detailed.
And it also uses the non-existing "Preferences" item to use...

But I followed it and that was what finally fixed my date format problem.
All other suggestions using different locale specifiers etc did NOT work at all.
(Turns out that the swedish locale sv_SE.utf-8 was not even selectable on my
system, the closest one was the Denmark one...)

Anyway setting the two specific config items like this solved it:

intl.date_time.pattern_override.date_short = yyyy-MM-dd
intl.date_time.pattern_override.connector_short = {1} {0}


-- 
Bo Berglund
Developer in Sweden