Pinebook Pro login clock is the wrong language

Hi all. After making several mistakes configuring Manjaro ARM KDE on my Pinebook Pro, I think I’ve fixed most of the problems except one:

The login SDDM clock language with date and time is in Thai…

Everything else on the initial login page (users, options, etc) is in English and everything else in KDE, once logged in, is in English as well, but for the life of me I can’t figure out how to change that initial clock language on the login page.

All advice I can find online seems to be for Ubuntu KDE which seemingly stores location info in different places than Manjaro.

Anyone have any ideas? Thank you!

What are the contents of /etc/locale.conf?