Hey there Holly,
Welcome to planDisney and thank you for your question!
It sounds like your plans for your upcoming trip to the Happiest Place on Earth have changed and you need to change some of the details - I've been there!
Luckily, the Disneyland Resort makes it easy to make or manage all the different reservations for upcoming visits - including theme park reservations - through the
My Plans hub on the Disneyland Resort website.
On the top section of this page, you'll see blue buttons that will easily walk you through the process of making or editing things like dining reservations, park reservations, and more. On the bottom section of the page, you'll see details of any currently made reservations for your upcoming trip.
If you need to change the
park reservations of one of the days of your trip, I'd recommend finding it in the bottom section of the My Plans hub and clicking the link to modify it from there. It'll walk you through the steps to select a new date and you'll be all set. Keep in mind that theme park reservations are subject to availability, so I'd recommend changing them as soon as you can!
Thanks again for your question, Holly. I hope you have a great time on your trip next month!
Have a Magical Day,
Greg