It’s a small thing, but it can be annoying: Apple automatically generates calendars for holidays and birthdays in the Calendar app for iOS and macOS. Adding to that annoyance for Macworld reader Jeff in New Zealand, is that the U.S. Holidays calendar appears for him on his iPhone, and it has no utility for him. He’d like to suppress its display.
Let’s look first at how Apple determines how it picks the holidays appropriate to show for you. Apple says that in macOS it relies on the Language & Region system preference pane’s Region popup. In iOS, that’s found in Settings > General > Language & Region, and then tap Region.
