Pretty sure it does
They never close especially Holidays for it being their busiest times of the year due to days off work and vacations taken by families on and around holidays making it peek seasons for major amusement themed parks . So if you plan visiting on Thanksgiving or any other major holidays expect larger than usual crowds and wait lines, wich should lead you to properly plan in advance and look into Premium Fast Pass to avoid ridiculous lines allowing you to enjoy more rides and shows by not wasting hrs on end ride after ride limiting you to experience even half of what they've got to offer.
No. Open all 365 days of the year.
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