If you’re like most people, you probably have a calendar filled with holidays and events. But if you want to remove them from your iPhone calendar, there are a few steps you can take. First, open the Calendar app and select the date range that includes your holiday or event. Then, click on the Remove From Calendar button. Next, open the Settings app and select General. Then, under Date & Time, select how you want to handle holidays and events: Automatically add days when new events occur or set a specific day for when they should be removed.