Calendar on Mac has duplicate events.

Have an iMac running Sonoma 14.4.1. I've noticed that since it was updated to this version the calendar had duplicate events. The calendar displays the same events as far back as 2019 to 2028 with the same event on every day. Example, my granddaughter was born on Feb 22, 2023. Her birthday is on every day to 2028. Shat is the problem? I need help. My iPhone has the correct data..

iMac 21.5″, macOS 10.13

Posted on May 19, 2024 10:11 AM

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1 reply

May 19, 2024 12:26 PM in response to freddie_ray

freddie_ray wrote:

Have an iMac running Sonoma 14.4.1. I've noticed that since it was updated to this version the calendar had duplicate events. The calendar displays the same events as far back as 2019 to 2028 with the same event on every day. Example, my granddaughter was born on Feb 22, 2023. Her birthday is on every day to 2028. Shat is the problem? I need help. My iPhone has the correct data..


Did you try deleting the event, and all future.


Then add it back in the way you prefer.



ref: Calendar User Guide for Mac


The current stable release of Sonoma including bug fixes, security updates is macOS 14.5

Keep your Mac up to date - Apple Support

Keep your Mac up to date - Apple Support



Calendar on Mac has duplicate events.

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