Best to check their website as they'll mention their opening hours over holidays on there.
I think 8 to midnight. Check to be sure on the website or call
The hours are posted on their website. It says 8am - midnight
Usually on holidays Disneyland is open until midnight and DCA is open until 10 or 11 pm
I don't think that they have different hours for Memorial Day. You should call them to verify?
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