I'm using Outlook 365 using their webapp. It's generally fairly acceptable (which is high praise for a Microsoft product). But...

Why in the name of everything that is holy do they format the dates in US format? Neither my OS, nor anything else is set to US locale, and I've searched through all the Outlook settings and there is no way to change this.

"US cultural imperialism" is a term I really want to through around right now.