My iPhone 11 calendar will not update….can anyone help me , please

Hey there Windowscreen!

Based on your post it sounds like you're having trouble with Calendar.

Just to confirm, are you unable to add events or are the events not syncing across devices?

Are you experiencing issues across multiple devices with Calendar?

Take a look at the information below and keep us updated.

If your iCloud Contacts, Calendars, or Reminders won’t sync

Warm regards.