Hey there Jimena,
Welcome to planDisney and thank you for your question! It sounds like you're planning a trip to the Happiest Place on Earth to ring in the new year - I can't think of a better way to celebrate!
The best place to get information like park hours, entertainment schedules and more is the
Hours & Events Calendar on the Disneyland Resort website. This schedule is released about six weeks out from the current date, so you'll be able to see the information for December 31 in just another week or so.
In previous years,
Disney California Adventure Park has been open until 1 AM and
Disneyland Park has been open until 2 AM with a fireworks show at midnight to usher in the new year. We'll be able to confirm if this remains the case for this year once the hours are released for December 31 on the Hours & Events Calendar in another week or so.
Additionally, the New Year's celebration is not a separately ticketed event! This means that your standard
theme park ticket and
theme park reservation is all you need to enjoy the occasion until park close. However, this is typically a very busy time of year to visit so if you haven't already, make your theme park reservation ASAP!
In the meantime, make sure to keep an eye on the
Disney Parks Blog for all the news you need to know about what's happening around the Disneyland Resort.
Thanks again for your question, Jimena! Enjoy your trip to the Disneyland Resort and Happy New Year!
Have a Magical Day,
Greg