[Bug 2130859] [NEW] date command fails to print locale month names

[Cengiz ADANIR]

Public bug reported:

Hello Ubuntu,

On the new Ubuntu 25.10, the "date" command fails to print locale names:

  LC_TIME=tr_TR.UTF-8 date +%B 
prints: 
  November 
instead of:
  Kasım, 

This command was OK on Ubuntu 24 (used inside a script to Grep month
names from a CSV file written in Türkish.

This command fails with the Rust version of coreuils.

Note however that the "locale" config is correct as the following command works as expected:
  locale -k LC_TIME 
shows the good locale name 
  ...
  mon="Ocak;Şubat;Mart;Nisan;Mayıs;Haziran;Temmuz;Ağustos;Eylül;Ekim;Kasım;Aralık"
  ...

Do I need to switch back to the old C based coreutils package?
Thanks to give a solution... 

There is no emergency however as I have added the English month names in
my CSV file... so my command works again... Just tried to inform you
about this behavior that seems to not be documented on Internet, I
googled for a valid answer, found nothing.

Thanks to give a solution. Also, some apps like Shotcut, Gimp crashes on
Wayland (but works on X11 reinstalled automatically by the Budgie
Desktop). The latest Shotcut as an Appimage seems to work on Wayland,
but I want a real App installed normally withou Snap or Flatpak or
Appimage.

ProblemType: Bug
DistroRelease: Ubuntu 25.10
Package: coreutils-from-uutils 0.0.0~ubuntu24
ProcVersionSignature: Ubuntu 6.17.0-6.6-generic 6.17.1
Uname: Linux 6.17.0-6-generic x86_64
NonfreeKernelModules: zfs
ApportVersion: 2.33.1-0ubuntu3
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Fri Nov  7 10:35:06 2025
InstallationDate: Installed on 2025-03-03 (249 days ago)
InstallationMedia: Ubuntu 24.10 "Oracular Oriole" - Release amd64 (20241009.4)
PackageArchitecture: all
SourcePackage: coreutils-from
UpgradeStatus: Upgraded to questing on 2025-11-03 (4 days ago)

** Affects: coreutils-from (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug questing wayland-session

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https://bugs.launchpad.net/bugs/2130859

Title:
  date command fails to print locale month names

Status in coreutils-from package in Ubuntu:
  New

Bug description:
  Hello Ubuntu,

  On the new Ubuntu 25.10, the "date" command fails to print locale
  names:

    LC_TIME=tr_TR.UTF-8 date +%B 
  prints: 
    November 
  instead of:
    Kasım, 

  This command was OK on Ubuntu 24 (used inside a script to Grep month
  names from a CSV file written in Türkish.

  This command fails with the Rust version of coreuils.

  Note however that the "locale" config is correct as the following command works as expected:
    locale -k LC_TIME 
  shows the good locale name 
    ...
    mon="Ocak;Şubat;Mart;Nisan;Mayıs;Haziran;Temmuz;Ağustos;Eylül;Ekim;Kasım;Aralık"
    ...

  Do I need to switch back to the old C based coreutils package?
  Thanks to give a solution... 

  There is no emergency however as I have added the English month names
  in my CSV file... so my command works again... Just tried to inform
  you about this behavior that seems to not be documented on Internet, I
  googled for a valid answer, found nothing.

  Thanks to give a solution. Also, some apps like Shotcut, Gimp crashes
  on Wayland (but works on X11 reinstalled automatically by the Budgie
  Desktop). The latest Shotcut as an Appimage seems to work on Wayland,
  but I want a real App installed normally withou Snap or Flatpak or
  Appimage.

  ProblemType: Bug
  DistroRelease: Ubuntu 25.10
  Package: coreutils-from-uutils 0.0.0~ubuntu24
  ProcVersionSignature: Ubuntu 6.17.0-6.6-generic 6.17.1
  Uname: Linux 6.17.0-6-generic x86_64
  NonfreeKernelModules: zfs
  ApportVersion: 2.33.1-0ubuntu3
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Nov  7 10:35:06 2025
  InstallationDate: Installed on 2025-03-03 (249 days ago)
  InstallationMedia: Ubuntu 24.10 "Oracular Oriole" - Release amd64 (20241009.4)
  PackageArchitecture: all
  SourcePackage: coreutils-from
  UpgradeStatus: Upgraded to questing on 2025-11-03 (4 days ago)

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