Funniest recent change Discord has made is that if you're on UK English (⚙User Settings > "App Settings" > Language) the datestamps swap to DD/MM/YYYY format and timestamps use 24-hour notation.
Like... I get it, nobody needs to explain to me why they have married settings in this manner. But it's still A Thing that if I want my date/time displayed correctly rather than in Bozo Notation I need to tell the world's least important lie and say I'm uhhhh Scottish. It's much too hard to leave date/time formatting as their own settings unrelated to whether "color" or "colour" needs a red spellchecker underline.