Datepicker how to set monday is FirstDayOfWeek in linux

excuse me sir, in last version,how can i set monday is FirstDayOfWeek in linux,
in win10 and vs2019(debug) is ok ,but deploy into linux or docker is not ok , what's wrong with me???
thx a lot

The FirstDayOfWeek is determined by the current .NET Culture. It is probably different on your server. You can check online how to set the current culture of your .NET application. Search for AddLocalization and UseRequestLocalization.