Iphone Calendar

Hello Paulokc,

Thank you for reaching out to Apple Support Communities, and we'll be happy to help in any way we can. We understand you'd like to set up iCloud Calendar from your iPhone. You can follow the steps here to accomplish this: Set up iCloud for Calendar on all your devices - Apple Support

"For an overview of what you can do with iCloud, see Keep your calendars up to date and share them with iCloud.

Note: Make sure you’re signed in with the same Apple ID on each device. If you have devices where you’re not signed in with your Apple ID or that have the Calendars feature turned off, you won’t be able to access your iCloud calendars on those devices.

Set up iCloud for Calendar on your iPhone, iPad, or iPod touch

1. On your iPhone, iPad, or iPod touch, go to Settings > [your name] > iCloud.
2. Do one of the following:

• iOS 17, iPadOS 17, or later: Tap Show All, then tap Calendar, and tap “Use on this iPhone.”
• iOS 16, iPadOS 16, or later: Tap Show All, then turn on Calendars.
• iOS 15, iPadOS 15, or earlier: Turn on Calendars.

1. To view calendars stored in iCloud, open the Calendar app, then do one of the following:

• iPhone or iPod touch: Tap Calendars at the bottom of the screen, then select the calendars you want to view in the iCloud section.
• iPad: In the sidebar, select the calendars you want to view in the iCloud section.

If you have more than one email address that you use with iCloud calendar, you can choose which email address to use when you send event invitations. You can also choose how you want to receive event invitations—in the app or by email. To learn more, see Set up how you send and receive invitations for iCloud Calendar.

For more information on how to share calendars on your iPhone, iPad, or iPod touch, see any of the following:

• iPhone User Guide: Share iCloud calendars on iPhone"

We hope this helps.

Cheers!