my calendars are not syncing across devices

Hi jshall234,

To start, is this an iCloud calendar or a third party one in use with the Calendars app?

If it's iCloud, take a look at the tips in the resource below for your relevant devices. They guide you through refreshing the app, checking common causes for data not syncing and resolutions for if you find an issue.

• If your iCloud Contacts, Calendars, or Reminders won’t sync - Apple Support

If the issue persists beyond those steps, feel free to reply to this post with additional details such as any error or message you receive.

Cheers!