Calendar problem with ios 15.1

Hello Erinfromlansing,

Thank you for using Apple Support Communities. Based on your post, the Calendar app isn't showing events on the correct days or times. We'll do our best to assist.

To begin, do you have any unfamiliar events/calendars that appear in Settings > Calendar > Accounts or in Calendar app > Calendars?

If so, we'd unsubscribe to these calendars to see if that helps to sort this out.

If you're using a VPN or security software, we'd recommend to disable them and restart the device, as these may be blocking the connection.

Do you have any Calendars set up? For example, through iCloud?

Have you tried to Restart your iPhone

Should it persist, what happens when you test other networks? You could disable Wi-Fi to test it using the cellular network or another Wi-Fi network altogether.

Hoping to hear back, take care.

He Erinfromlansing,

Let's narrow this down further.

Are you noticing this with specific events or subscribed Calendars? Did you create these events or are they shared to you? Do you use these calendars on other Apple devices? If so, do they appear normally on that other device when you check?

Please note: If you're using a VPN or security software, we'd recommend to disable them and restart the device, as these may be blocking the connection: Check VPN (Virtual Private Network) and third-party software to help resolve network connectivity issues

Have a good one, cheers.

Hi Erinfromlansing,

We'd try to close the Calendar app: Close an app on your iPhone or iPod touch

Then Restart your iPhone

If the issue continues to occur, then we'd recommend to contact Apple directly: Get Support

Wishing you well, take care.