iCloud calendar not syncing to iPhone, iCloud calendar not syncing to iPhone

Check in your iDevice settings, how offten load events. Go to Settings->Mail,contacs,calendars->Calendars->Syc->choose "All events".

Thank you! This worked for me. I have to do it every few months because the calendars on my iPhone and ipad just stop syncing, sometimes, for some reason. It's very frustrating because I miss appointments and meetings as a result. Anyone this solves it. Thanks.

I have 15,000 entries in my calendar. It took an hour to turn off calendar. Took another hour to turn it on again. Be prepare for the time it takes.

Besides updating problem, I also have date problem with iCloud calendar. The date shown on iCloud is correct, December xx 2013. But the contents were of an unknown date. December xx of an unknown year.

Anyone know the reason, please?

All my issues resurfaced with the IOS 7 debacle. Apple decided to change my settings. The upgrade timing was terrible and ultimately fried an IPod hard drive. They should never have let us Iphone 4 users do the upgrade as it made our phones slow.

Back on topic. It would have been nice if all the settings for calendars were in one place but they are hidden under 5-6 different locations. STUPID!!

Myself, like miliions of others have been completely PO'd with Apple since the upgrade debacle and patiently await the S5 release in April so we can say goodbye to a company that has lost touch.

What is happening to Apple stock should be an eye opener to a company that disenchanted so many with their ambitions of planned obsolesense over the past year. BTW these are the feelings of a 51yr old and they parallel a 26 yr old exec family member to the letter.

Something that should be as fundamental as a calendar?? How could they make it so complicated. Look at the thousands of posts with issues on this topic. The phone just doesn't make sense to the common man.

I noticed that, when these synchronisation issues appear, the calendar(s) should be somehow broken in iCloud so I figured out the following steps to get rid of the existing calendar(s) in iCloud, restore the existing calendar(s)' data in new calendars in iCloud and as such fix the synchronisation issues. Not all steps might be required, but by performing them all, it worked for me.

My gear:

- Mac running OS 10.9.2.

- iPhone 3GS running iOS 6.1.6 (10B500)

- free iCloud account

By following this tutorial, all calendar data on your iPhone will be erased. Hence, there’s only one prerequisite: all calendar data to be preserved should be present in Calendar on your Mac.

1. Backup the calendar in ICS format.

On Mac:

- Open Calendar

- For each calendar (on the left-hand side): select it and click ‘File - Export - Export…’ to export the calendar to an ICS file. In contrast to the ‘Export Calendar Archive’ functionality, this approach removes all iCloud metadata from the calendar entries, which is exactly what we want.

2. Obtain a clean Calendar on iCloud that synchronises well from both your iPhone and your Mac.

On iPhone:

- close ‘Calendar’, go to ‘Settings - iCloud’ and make sure ‘Calendars’ and ‘Reminders’ are toggled off. When toggling off, you will be prompted with a question asking you to remove the data on your iPhone and you should choose to do so.

- open the ‘Calendar’ and verify that it’s now empty (i.e., there’s a single calendar without any entries); close ‘Calendar’

On Mac:

- go to ‘Apple - System Preferences - iCloud’ and deselect ‘Calendars’ and ‘Reminders’. You will be prompted with a message upon deselection and should choose to ‘Delete from Mac’; close ‘System Preferences’

- open the ‘Calendar’ and verify that it’s now empty (i.e., there are 3 calendars without any entries); delete all but the ‘Home’ calendar; close ‘Calendar’

- reboot

- open the ‘Calendar’ and verify that it’s still empty (i.e., there’s a single calendar without any entries); close ‘Calendar’

- go to ‘Apple - System Preferences - iCloud’ and select ‘Calendars’ and ‘Reminders’. You will be prompted with a message upon selection and should choose to ‘Merge’; close ‘System Preferences’

- open the ‘Calendar’; there should now be calendars under ‘iCloud’ (on the left-hand side); create a new calendar ‘New’ and remove all previously existing ones so you’re left with only the ‘New’ calendar; hit cmd+r (‘Updating..’ should shortly appear in the title bar)

- reopen ‘Calendar’ and hit cmd+r again (‘Updating..’ should shortly appear in the title bar)

On iPhone:

- go to ‘Settings - iCloud’ and toggle ‘Calendars’ and ‘Reminders’ on.

- go to ‘Settings - Mail, Contacts, Calendars’:

o set ‘Fetch New Data’ to ‘Push’ (Manually)

o set ‘Calendars - Sync’ to ‘All Events’

- open the ‘Calendar’; click ‘Calendars’: you should see a single iCloud calendar: ‘New’; click ‘Done’

- add a new entry (e.g., “Phone”)

On Mac:

- in ‘Calendar’, verify that you see the new entry appearing (e.g., “Phone”)

- add a new entry (e.g., “Mac”) and hit cmd+r (‘Updating..’ should shortly appear in the title bar)

On iPhone:

- in ‘Calendar’, verify that you see the new entry appearing (e.g., “Mac”) and remove it

On Mac:

- in ‘Calendar’, hit cmd+r and verify that you see the entry disappearing (e.g., “Mac”); remove the entry added through the iPhone (e.g., “Phone”); hit cmd+r; your calendar should be empty now

On iPhone:

- in ‘Calendar’, verify that you see the entry disappearing (e.g., “Phone”) and the calendar is empty again.

3. Restore your backup

On Mac:

- in ‘Calendar’, choose ‘File - Import - Import…’ to import every calendar that you backed up in part 1 as a new calendar. You will see “Updating…” appear in the title bar every time you do an import so make sure to wait until that indicator is gone before proceeding with the next file.

- if you don’t need the ‘New’ calendar anymore, delete it

- hit cmd+r

On iPhone:

- in ‘Calendar’, click ‘Calendars’ and hit the refresh button (left-bottom); you should now see all restored calendars appear; hit ‘done’

- you should now see all restored entries appear in your calendar

4. Verify the synchronisation of your Mac and iPhone to iCloud and vice versa

-> This can be done by adding entries and removing entries using both your Mac and iPhone (cfr. the final steps of part 2)

5. Enjoy your properly functioning Calendar(s) in iCloud on both your Mac and iPhone ;-).

dude thx alot ur idea did help me alot thx dude long live

@wout86 ! awesome sauce !

Thanks a lot! That solved all my problems! And I got rid of my multiple calendars mess. Brilliant!

note in iOS 8: TO REFRESH CALENDARS... when in Calendar, tap Calendars at the bottom, then pull down to refresh the Calendars screen as you would to refresh Mail. Once it finishes the refresh, click Done and it should update.

Apple.com

Completely erased all of my calendars off everything, traced the problem to my iPad (2 with 8.1.1) & iPhone (5C with 8.1.1) a downloaded multiple event ICS calendar won't sync to iCloud if downloaded on either of these devices, the name of the calendar appears and can be edited on all devices however the events only appear on the device that actually downloaded the calendar. Loading the ICS calendar on my Mac (10.10.1) syncs across everything fine, and creating single events on the iPad or iPhone will sync, but as I said a multiple i.e. full month of events won't sync.

P.S if I edit a single event of the month long calendar which is actually on the iPad or iPhone that one event will then sync across everything?

I give up!

I tried pretty much EVERYTHING mentioned in these posts, then I realised that I had changed my iCloud PASSWORD recently. Once I re-entered my new password on my iPhone, all my iCloud events synced instantly! Unlike my other email accounts, iCloud never popped up with a reminder that my previous password was no longer valid.

Hope this helps someone somehow 🙂

I found a quick fix for this problem.

My issue wasn't exactly like everyone else's, but similar enough that this could work for you. I recently changed data on a calendar entry on my macbook pro - running latest OS from Mac. When I went to my phone - iPhone 5c running iOS 8.1.2 - the entry that I changed from macbook did not update onto phone. It still held the old data. After reading this post and trying a few things from it, I saw the post about "re-syncing" iPhone with iCloud.

Here is what I did to rectify the situation:

I signed out of iCloud on my phone and then signed back in.

- chose to delete data from iPhone with contacts, mail, calendar

Signed back in using appleID

- had to resubmit "keychain" request to have all my passwords synced

Everything works GREAT! Now my calendars are synced and they read the same data across all 3 apple platforms I am using - Macbook Pro, iPad 4, iPhone 5c... I LOVE APPLE!

This helped - thank you! Is there a way to make all events I've put in my iPhone calendar to reset under an iCloud category in one fell swoop? (instead of doing it one by one?)