In El Capitan you could set different UI language and still use calendar in other language. This doesn't seem to possible anymore. What's up with this?
Here somebody posted with some screenshots:
http://apple.stackexchange.com/ques...t-display-and-format-language-on-macos-sierra
Here somebody posted with some screenshots:
http://apple.stackexchange.com/ques...t-display-and-format-language-on-macos-sierra