My iCloud calendar won't sync with my iPhone 5 (iOS 6). Can anyone help?!

remove the icloud account and re-add it.

I feel your pain! I too am having an issue with the icloud sync for calendars on my iphone 5. I have an ipad, iphone5 and macbook pro retina. My macbook and ipad are in perfect sync with the icloud. My iphone WAS in sync but somehow is now not in sync. Changing a TIME on an existing event in the calendar on my mac changes it in the cloud and on my ipad but NOT on my iphone5. I have checked all settings to be sure nothing magically changed but everything is set up properly as far as I can tell. If I delete the event and add it back - IT WORKS. The iphone5 just doesn't seem to accept a TIME CHANGE for an existing event. Any suggestions?

Have you tried deleting all calendars from your phone and then re-adding only the iCloud calendar?

I have had similar problems before, and once I did this everything worked fine.

I realize that you tried deleting the iCloud account, but most people don't realize the order you add the accounts to your phone can impact it.

Hope this helps.

I feel the pain.

This post was helpful because it works now! yay!!!

All I did was "turn off calendar" under iCloud in my iphone and then turn back on.

Voila! It works now! ha

I'm trying to sync only my Facebook calendar (to keep up with the birthday reminders) with the one from my iPhone 4 and it won't let me unless I tick the sync contacts as well. Would be grateful for a solution

I'm having the same problems and I'm totally fed up with it now. I should not have to keep deleting my iCloud account on the phone and start over again and again. I have the iPhone 4S. Anything I enter from the phone stays on the phone. Some things I enter from other devices goes to the phone. It seems completely random. It's time Apple fix the problem. It's putting me in a bad mood. Does anyone know if they are going to fix it?

Thanks.

Also a Marine Grunt here and I am still having this problem you describe with your iPhone5. Won't keep in sync with my iPad or my iCloud.com calendar. I also have tried to delete, re-populate the calendars and no luck.

Does anyone have a solution? Apple; are you listening?

I have the solution for the Facebook calendar, sync.me app.

I had the same problem. For some reason, "Push" had been turned off on my iPhone. I have no idea how this happened, as I NEVER turned off Push. But once I turned Push back on again, everything started working again... after I deleted and re-added my iCloud account. So i turned Push on, then deleted and re-added my iCloud account. That fixed it.

Also make sure iCloud is set as your default Calendar, otherwise the event may only be listed on the device you enter it on.

I was getting a headache when i finally found it out.

Disconnect from your wifi. Than turn off calander and turn it back on in setting/icloud. It should take a while. I think that it wouldnt show up because of internet probelms some how. It takes about five minuts to show up. This happens most likely because you have events that are set to go on forever and your phone is trying to keep up with it. Please like this works so that others can do it. This is how i fixed my problem.

So I had the same problem and I found a solution that worked for me. Navigate to:

Settings > Mail, Contacts, Calendar > (Under Calendar) Sync then select "All Events".

So I guess in my case I was connected to iClud except it was not syncing my old events. Hopefully your problem is fixed!