Can't get Thunderbird to display dates in ISO-8601

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astrojuanlu
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Can't get Thunderbird to display dates in ISO-8601

Post by astrojuanlu » Tue Sep 10, 2019 6:11 am

I run Linux Mint 19.2 and Thunderbird 60.8.0 (July 2019). I am trying to change the UI to display the dates in a reasonable date format called ISO 8601, and for that I tried setting

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LC_TIME=en_DK.UTF-8
as suggested in several places. In fact, this SO answer points to a settings panel that apparently signals that I did this correctly:

Image

However, the UI still displays the dates in an unreasonable date format:

Image

Some other places mention the "Super Date Format" Thunderbird addon, but it does not work with recent versions of Thunderbird.

By looking at the output of

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locale -k LC_TIME
, it seems that Thunderbird is completely ignoring it:

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juanlu@voyager:~$ date +%x
2019-09-10
juanlu@voyager:~$ locale -k LC_TIME
abday="Sun;Mon;Tue;Wed;Thu;Fri;Sat"
day="Sunday;Monday;Tuesday;Wednesday;Thursday;Friday;Saturday"
abmon="Jan;Feb;Mar;Apr;May;Jun;Jul;Aug;Sep;Oct;Nov;Dec"
mon="January;February;March;April;May;June;July;August;September;October;November;December"
am_pm=";"
d_t_fmt="%Y-%m-%dT%T %Z"
d_fmt="%Y-%m-%d"
t_fmt="%T"
t_fmt_ampm=""
era=
era_year=""
era_d_fmt=""
alt_digits=
era_d_t_fmt=""
era_t_fmt=""
time-era-num-entries=0
time-era-entries="S"
week-ndays=7
week-1stday=19971130
week-1stweek=4
first_weekday=2
first_workday=2
cal_direction=1
timezone=""
date_fmt="%a %b %e %H:%M:%S %Z %Y"
time-codeset="UTF-8"
alt_mon="January;February;March;April;May;June;July;August;September;October;November;December"
ab_alt_mon="Jan;Feb;Mar;Apr;May;Jun;Jul;Aug;Sep;Oct;Nov;Dec"
juanlu@voyager:~$ thunderbird  # Nothing strange here
[calBackendLoader] Using Thunderbird's builtin libical backend

(thunderbird:3166): Gtk-WARNING **: 11:39:42.416: Theme parsing error: <data>:1:34: Expected ')' in color definition

(thunderbird:3166): Gtk-WARNING **: 11:39:42.416: Theme parsing error: <data>:1:78: Expected ')' in color definition
1568108384098	addons.xpi	WARN	Can't get modified time of /usr/lib/thunderbird/features/wetransfer@extensions.thunderbird.net
*** UTM:SVC TimerManager:registerTimer called after profile-before-change notification. Ignoring timer registration for id: telemetry_modules_ping

What am I doing wrong?

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