It missed another category of USA-centrics behaviour that infused in PHP: the dates. For instance, `mktime(hour, minute, second, month, day, year)`. I've never seen a country outside of North-America that puts the month first, though my experience is limited to a few dozens of countries across the world.

Unfortunately, other programming languages also think the USA format is the standard. Formatting dates with Golang relies on using the USA ordering. The more I use it, the more I despise it. I'm from Europe, but I'm so used to ISO dates that I need a small adjustment time to read European formatted dates.