For those affected: Install language-selector-gnome and try to set your locale that way. Greeter's time format was fixed this way, and now I'm able to write using Finnish keyboard layout! So this might not be Greeter bug, it could be that elementary OS's locale plug doesn't do its magic very well.
For those affected: Install language- selector- gnome and try to set your locale that way. Greeter's time format was fixed this way, and now I'm able to write using Finnish keyboard layout! So this might not be Greeter bug, it could be that elementary OS's locale plug doesn't do its magic very well.