This question already has an answer here:
Hovering the mouse pointer over my calendar displays the tooltip with weekday name in Dutch, whereas I've installed my system in English.
The calendar settings have the tooltip set to "%A %x" It's my understanding that "%A" is the national representation of the weekday name. However, I would like to get this to display in English, not Dutch.
I've already set the system to English, logged out, logged in. Rebooted. All of that. I see other people have had this issue before with Ubuntu and solved it through language support. This didn't do it for me.
I'm working with Lubuntu 13.10