Wrong holidays or no holidays are displayed.

Ermine does not provide holiday information. It comes from the calendar source you selected in Ermine's settings.

If holidays are wrong, the holiday calendar source may be wrong, or the holiday calendar may not be updated properly.

Use Apple's holiday calendar

Please use a holiday calendar that is updated with the latest information, such as Apple, Google, etc.

On iOS, Apple's holiday calendar is set according to your region's preferences. We recommend that you use it in Ermine as well.

In Ermine, select "US Holidays" in the "SUBSCRIBED CALENDARS" section. (The name of the holiday calendar will vary depending on your region setting.

How to Set holiday Calendars

Reference: About Holiday Calendars

Apple's holiday calendar is also showing old holidays?

If you are using Apple's holiday calendar in the above settings and you still see old holidays, the holiday calendar may not be updated properly. Open the Calendar app, tap "Inbox", and swipe down slowly to update.

Apple's holiday calendar doesn't appear in the list?

Apple's holiday calendar appears automatically on the iPhone/iPad calendar based on the "Region" setting in the Settings app.

For more information, please visit:
About holiday calendars on iOS and macOS - Apple Support

If you can't see the holiday calendar by Apple, you may need to change some settings in the Settings app.

Also, if the iOS language is different from the region, the holiday calendar doesn't appear. In this case, try adding the region's language to the list of Preferred Language. Try the steps below:

  1. Open the Settings app and go to General > Language & Region.
  2. Change "Region" to a different region and then change it back to your region.
  3. If your region and language are different, tap "Add Language..." under the "Preferred Language Order" section to add the language that matches the region.
  4. Open the Calendar app, and make sure the holiday calendar is in the calendars list. (It may take a few minutes to appear.)
  5. Select the holiday calendar in the Ermine app. Here are the instructions.

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