Calendar has been wiped with iPhone update. Wondering if my calendar would be stored somewhere

Mark Beattie-Hay 20 Reputation points
2026-08-19T10:48:29.3366667+00:00

Updated iPhone

Calendar wiped after update

Trying to see if my calendar is so tired on any server with hotmail / ms outlook

Thanks

Outlook | Web | Outlook.com | Calendar
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Answer accepted by question author
Victor1-V 12,935 Reputation points Microsoft External Staff Moderator
2026-08-20T07:47:39.83+00:00

Hi Mark,

I understand that your calendar disappeared after the iPhone update and you would like to determine whether a copy is still stored online.

Please note that this is a user-to-user forum, so contributors cannot access your account or recover calendar data directly.

The Q&A Assist guidance is generally correct if the missing events belonged to your Outlook.com or Hotmail calendar. Have you had a chance to sign in to Outlook on the web and try those steps?

I would also like to add that calendars shown on an iPhone can belong to different accounts. In the Apple Calendar app, select Calendars at the bottom and check whether the missing calendar was listed under Outlook, iCloud, or another account. Please also confirm whether you were using the Apple Calendar app or Outlook for iOS.

If the calendar belonged to iCloud, an earlier archived version may be available through iCloud.com > Data Recovery > Restore Calendars. Restoring a version replaces the calendars currently stored in iCloud and removes calendar-sharing settings, so review the instructions carefully first: Restore calendars from iCloud.

Disclaimer: This is a non-Microsoft website. The page appears to provide accurate and safe information. Please watch for advertisements that may promote products frequently classified as potentially unwanted products.

If the events belonged to Outlook.com but remain absent from Outlook on the web after completing the Q&A Assist checks, contact Outlook.com Support by selecting Help in Outlook.com, entering the issue, and selecting Yes under Still need help? For reference: How to get support for Outlook.com | Microsoft Support 

I hope identifying the original calendar account helps determine the appropriate recovery option.

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.    

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  1. AI answer

    2026-08-19T10:48:44.2566667+00:00

    Check whether the calendar still exists in Outlook on the web first. If it opens there, the data is stored with the Outlook.com account and the issue is sync on the iPhone rather than data loss.

    Use this path:

    1. Sign in to Outlook on the web and open the calendar.
    2. If the calendar is present there, on the iPhone go to the account settings and make sure calendar sync is enabled.
    3. If the account was added as IMAP or POP, remove it and add it back as Outlook.com or Exchange/Exchange ActiveSync. IMAP and POP sync email only, not calendar or contacts.
    4. If the calendar still does not return on the phone, remove and re-add the mobile sync relationship, then restart the iPhone and add the account again.
    5. If using the Outlook mobile app, go to Settings > tap the account that is not syncing > Reset Account. If needed, delete and re-add the account.

    If the calendar does not appear in Outlook on the web either, that points to an account-side issue rather than an iPhone sync issue.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

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