Lost all calendar events on iPhone after iOS 18.5 update

Me too!!! At first I thought my daughter somehow cleared everything but it appears this has happened to lots of people and recently. I just noticed mine within the last week. All events gone. I’ve done all the troubleshooting and contacted Apple. I have a callback with them tomorrow morning so hopefully I get help. Soooo freaking annoyed. 😑

Wife has a iPhone 15. Noticed this on the iOS 18.6 update. Could have been before.. not sure. Her entire iCloud Calendar wiped.... She is not one that tweaks her settings. They stay the same. I just bought a 17 (in the past week), not sure how it would be relevant or not, but I have no issues with my calendar. So far, only Calendar issues.

I just had the same issue when I checked my calendar tonight. Is there any solution to this? I’ve tried everything posted about in this sub and nothing has helped. My calendar has been completely wiped. I had years of events and months in advance of appointments, events, work/work-related scheduling, so I really don’t want to have to comb through my life to put my calendar back together.

I too am shocked and very frustrated by this happening. I just found this support page! Thank heavens! Ive been talking to Apple Support and even to my local Apple troubleshooter to rectify all of my information from the past years!! To NO AVAIL!!! I only have 6 months of backup now and have not had any success in retrieving my history. Im so angry. Apple has done us ALL a terrible disservice doing this!! What is my recourse? HELP PLEASE!!!

Charles I beg to differ with you re deleting calendar being a user misstep! My personal experience has involved the senior techs last month both in person and on the phone over a two week period. All I spoke with were not at all familiar with my issue, could not find a reason why this happened and after trying all methods you suggested we’re unable to resolve this problem. Very frustrating and discouraging to me re Apple!

In your situation there has been a very unique dynamic that still defies understanding. It's puzzling. We don't have instant replay to help solve. But there is an explanation and perhaps the answer to what happened and is recovery possible will become apparent.

I’ve tried all the solutions as listed above.

In answer to some questions everything was wiped out of my calendar.

I have looked at sync, which is set to all events.

Nothing has restored back to my calendar and it’s been frustrating for me to add new events and meetings.

The only thing that survived was the birthdays that are pulled over from my contacts (so wouldn’t disappear anyway).

Devastating! My Calendar was synced between my iphone 13 and my macbook, but my reminders weren't. On my phone, I turned on sync for my reminders, and I selected the 'merge' option given. Then my phone automatically gave me the same 'merge' screen for Calendars (even though they should have been synced) so I selected that. I opened the Reminders app and it showed a welcome screen, suggesting I update the reminders app 'to unlock its full potential' (lol) so I updated. Now all my Reminders and entire Calendar are wiped. I used restore for the Calendar to a backup from earlier today, but it restored from about 3 years ago!! The Reminders did not even show as an option for restore, and even 'deleted items' is gone in the app, so I can't restore from there. Everything is gone. All calendar events and all reminders. Years and years and years of building dates and lists and efficiencies. FFS. I was actually wondering whether to use google Calendar/Tasks but i thought it would take too long to rebuild and I should stick with Apple. but I guess I'll be changing over now, hey. Very peed off!

Do not use the delete from iPhone. Then you will loose everything. I just tried for fun - because everything was gone. And future events I have put in calendar since all of this happened are now gone as well… 😢

I’m currently experiencing this same issue. I’m not sure what happened but all of my events on my calendar all have been deleted. I had years and years of events on the calendar. I’ve tried just about everything to get the events back but I’m still not having any luck. Anyone figure out how to restore the calendar? It just randomly deleted itself.

Did you ever figure this out? This just happened to me and I’m stressing because I have so much on my calendar.

After getting 18.6.2 my calendar dates with info vanished. How do I get it back. Lost important dates

Me too! Why? I had my doubts upping to 18.5, made at myself for doing so. Hope someone here has a solution. Thank you

Have found my shared events are still in iCloud. Just can't seem to get them on my cpu calendar or phone calendar. Have tried unsubscribing to iCloud and turning back on but that doesn't work.

This just happened to me. Years of calendar entries are gone. Is there any way to retrieve them? Thanks.