Created attachment 144143 [details] Screenshot showing settings and result SUMMARY *** Language for time values is mixed up, days and months show in German (wrong), "Today, Yesterday" and the rest of the UI in English (correct) Fallback language is US English, but LC_TIME is set to de_DE.UTF-8 *** STEPS TO REPRODUCE 1. Set primary language to English (as shown in screenshot) 2. Set LC_TIME to something different OBSERVED RESULT Language mix as per the screenshot EXPECTED RESULT everything in English as per the "Configure Language" setting SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 5.23.4 KDE Frameworks Version: 5.88.0 Qt Version: 5.15.2