Holliday on wrong date

Hello Calendarerrors,

To start, you'll want to make sure the Holiday calendar you have selected is from the correct region. In the Calendar app select Calendars at the bottom of the screen, then under the Other section see what region Holiday calendar you have selected. For example, if you have it set to US where Easter would be on a Sunday, it would show "US Holidays".

If you need to change the Holiday calendar to a different region, you can do so with these steps:

1. Tap Calendars at the bottom of the screen.

2. Tap Add Calendar, then tap Add Holiday Calendar.

3. Tap the holiday calendar you want to subscribe to, then tap Add.

Use the Holidays calendar on iPhone

If you do have it set to the correct region, and it is still showing the wrong day for the item, you'll want to contact Apple to report the issue: Get Support

Cheers!