Languages

If you see duplicate calendars or events after setting up iCloud Calendar

Symptoms

After you set up iCloud Calendar, you might see duplicate calendars or calendar events on your iOS device, Mac, or PC. 

Resolution

Find out if calendars or events are also duplicated on iCloud.com

First, check Calendar on iCloud.com to see if calendars or events are also duplicated there. If they are, then contact iCloud Support for help.

If you see duplicate calendars or events only on your iOS device or computer but not on iCloud.com, follow the steps below. But first, make sure that you understand how to use iCloud calendars with Calendar, iCal, or Outlook. 

Refresh your calendars on your device

Make sure that Calendar is showing up-to-date information:

  • iOS 7: Open the Calendar app, then tap the Calendars tab to show the list of your calendars. Pull down on the list to refresh.
  • iOS 6 and iOS 5: Open the Calendar app, then tap Calendars in the upper-left corner to show the list of your calendars. Tap the Refresh button in the lower-left corner.
  • OS X: Open Calendar and choose View > Refresh Calendars. If you're using iCal, choose Calendar > Refresh All. The word "Updating" appears in the title bar while the calendars are refreshing.
  • Windows: In the Outlook toolbar, click the Refresh button in the iCloud section.

If you still see duplicate calendars after refreshing them, see the next section.

Check your settings in iTunes and iCloud

You might see duplicate calendars if you use more than one method to keep iCloud calendars up to date across your devices. Apple provides two methods: iTunes and iCloud. It's possible to use both methods only if you're using iTunes 10. If you're using iTunes 11 or later and see duplicate calendars, follow the steps to hide or delete duplicate calendars.

If you're using iTunes 10, check to see if iTunes is syncing calendars:

  1. Connect your iOS device to your computer with the USB cable that came with it.
  2. Select your device in the Source list, then select the Info tab. If the Sync Calendars checkbox is selected, then iTunes is set to sync your calendars. 

Then check to see if iCloud is also set to keep calendars up to date: 

  • OS X: Go to the Apple menu () > System Preferences, and select iCloud. If the Calendars checkbox is selected, then iCloud is set to keep calendars up to date.
  • Windows: Open the iCloud Control Panel. If the “Mail, Contacts, Calendars, and Tasks” or “Calendars & Tasks” checkbox is selected, then iCloud is set to keep calendars up to date. 

If iTunes 10 and iCloud are both set to keep calendars up to date, consider updating to iTunes 11 or later. Starting with iTunes 11, it's not possible to use both methods at the same time. If you want to keep using iTunes 10, follow these steps:

  1. Turn off the Sync Calendars setting in iTunes. With that change, you'll use only iCloud to keep your calendars up to date. New calendars and events will appear only once. 
  2. Follow the steps in the next section to hide or delete duplicate calendars. Your old calendars and events will still be duplicated, so you need to either hide or delete them.  

Hide or delete duplicate calendars on your computer

When you set up iCloud on your device, events that are stored locally on your device should move to iCloud. If that process doesn't complete successfully, you might see duplicate calendars on both your device and iCloud. Those duplicate calendars could show some or all of the same events. 

To resolve the issue, you can hide or delete duplicate calendars on your computer. If you choose to delete the local copies (the copies on your device), make a copy of the calendar data first. 

OS X

To hide a local calendar on your Mac, follow these steps: 

  1. Open Calendars or iCal. If you don't see your list of calendars, click the Calendars button in the upper-left corner.
  2. Look for an On My Mac section in the list. By deselecting and selecting the checkboxes in that section, you can quickly hide and show the events in each local calendar. Compare those events to the events that you see in your iCloud calendars.
  3. If some events are on your Mac but not in iCloud, your calendar data might not have merged successfully with iCloud. Try manually importing events into iCloud.
  4. If the calendars in iCloud contain all of your events, and the calendars on your Mac contain only duplicates of those events, you can leave the calendars on your Mac hidden. 

You can also delete calendars stored on your Mac, but make sure you choose only from the calendars in the On My Mac section. Don't choose calendars in other sections, such as sections labeled for iCloud, Subscriptions, Other, or other calendar services.

To delete local calendars on your Mac, follow these steps: 

  1. Make a copy of the calendar data stored in iCloud.
  2. In the On My Mac section, click the calendar name. 
  3. Choose Edit > Delete.

Windows

To hide a local calendar on your Windows PC, follow these steps:

  1. Open Outlook and click Calendar. If you can't see your list of calendars, expand the navigation pane by clicking the right arrow button above the Navigation Pane button (Outlook 2007), Folders button (Outlook 2010), or All Folders button (Outlook 2013).
  2. Look for a My Calendars section in the list. By deselecting and selecting the checkboxes in that section, you can quickly hide and show the events in each local calendar. Compare those events to the events that you see in your iCloud calendars.
  3. If some events are on your computer but not in iCloud, your calendar data might not have merged successfully with iCloud. Try merging again:
    1. Open the iCloud Control Panel.
    2. Deselect the “Mail, Contacts, Calendars, and Tasks” checkbox (or “Calendars & Tasks” checkbox), then click Apply.
    3. Select the checkbox again and click Apply.
  4. If the calendars in iCloud contain all of your events, and the calendars contain only duplicates of those events, you can leave the local calendars hidden.

If you want to delete those calendars instead of hiding them, right-click the name of the local calendar and choose Delete Calendar. Outlook won't allow you to delete the default Calendar, but you should be able to remove any other calendars that you have permission to delete. 

Important: Information about products not manufactured by Apple is provided for information purposes only and does not constitute Apple’s recommendation or endorsement. Please contact the vendor for additional information.
Last Modified: Jun 25, 2014
Helpful?
Yes
No
  • Last Modified: Jun 25, 2014
  • Article: TS4118
  • Views:

    22970
  • Rating:
    • 20.0

    (1 Responses)

Additional Product Support Information

Start a Discussion
in Apple Support Communities
See all questions on this article See all questions I have asked