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I want to use the en_US locale but I want to change the first day of week from Sunday to Monday. I have found a way to do this for older versions of Ubuntu but it seems that the configuration has changed recently with Ubuntu 22.04.

When I open /usr/share/i18n/locales/en_US I see the following under LC_TIME:

LC_TIME
abday   "Sun";"Mon";"Tue";"Wed";"Thu";"Fri";"Sat"
day "Sunday";/
    "Monday";/
    "Tuesday";/
    "Wednesday";/
    "Thursday";/
    "Friday";/
    "Saturday"

week 7;19971130;1
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"

Can I simply change the order of abday and day? What is week and do I need to change it also?

Is this even the correct way to do it?

Martin Zeltin
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  • $ less /usr/share/i18n/locales/sv_SE -> first_weekday 2 just before END LC_TIME - copy en_US to a new file, then look at https://superuser.com/a/1750342/346288 to see how to enable it. – Hannu Feb 26 '23 at 09:32
  • @Hannu that didn't work for me. I added first_weekday 2 just before END LC_TIME but the the calendar still shows Sunday as the first day. I logged out and back in after that. – Martin Zeltin Feb 26 '23 at 11:53
  • Wicked, I know I had that working - it isn't now, can't re-create what I wrote. :-( – Hannu Feb 26 '23 at 18:33
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    @Hannu: That superuser answer does not work since the new locale name is neither in /etc/locale.gen nor /usr/share/i18n/SUPPORTED. But besides that, a locale name which doesn't follow the pattern ll_CC.UTF-8@modifier is deemed to be problematic. – Gunnar Hjalmarsson Feb 26 '23 at 20:31

1 Answers1

3

I would edit the existing locale directly.

  1. Open /usr/share/i18n/locales/en_US for editing.

  2. Add the line

    first_weekday 2

    right before the line

    END LC_TIME

  3. Save.

  4. Generate the modified locale:

    sudo locale-gen en_US.UTF-8
Gunnar Hjalmarsson
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