Why is there no Halloween holiday in the iphone calendar?

There is no Halloween holiday in Apple's mobile phone calendar because your mobile phone is set with China's calendar.

Calendar settings in other countries:

On the iOS device, go to the Calendar app, and then tap Calendar. Scroll down to "Other" and click.

Turn the holiday calendar on or off. The name of the holiday calendar indicates which country or region will be displayed. After making changes, you may need to refresh your calendar to see the changes. Go to the calendar application and click Inbox. Then slowly slide down from the top of the screen.

You can also enter the calendar application, click on the calendar, and then select or deselect "American holidays". After making changes, you may need to refresh your calendar to see the changes. Go to calendar > display > refresh the calendar. ?

IPhone is a series of mobile phones with iOS operating system released by Apple.

As of September, 20021year, Apple has released 26 mobile phone products, the first generation: iPhone? , the latest version: iPhone 13, iPhone? 13 professional edition.

The mute button of iPhone series products is on the left side of the front of the device; Before the iPhone 5, this model used a 30-pin (that is, 30-pin) interface, and after the iPhone 5 (inclusive), this product used a Lightning interface. The Home button is configured for models before iPhone X; After iPhone X (inclusive), the physical Home key was cancelled.

IPhone series models have been equipped with Apple silicon self-developed chips since iPhone 4. Touch ID first appeared on iPhone 5s.

IPhone 6s and iPhone 6s Plus added 3D Touch touch control on the screen for the first time; Wireless charging first appeared on iPhone8 and iPhone 8 Plus models, and Qi(Chee) wireless charging standard was adopted.