Hello there Perpetua, welcome to planDisney!
I believe you're referring to a time of day when
park hopping would begin, but luckily, guests are currently now allowed to park hop starting at 11:00 AM (time subject to change and based on availability). I definitely recommend checking the
hours and events calendar prior to your visit!
I always recommend adding on the park hopper option for your visit! Disneyland Park and Disney California Adventure Park are located close together, and it's just a short walk to get to the other park! You're able to add on the park hopper option when purchasing your
theme park tickets.
If you also opt to purchase
Lightning Lane Multi Pass during your trip, the great news is that you can also book Lightning Lane selections for both parks! We love starting our day in one park, and then we begin booking Lightning Lane selections for the afternoon so we can enjoy the magic in both theme parks.
I hope this helps answer your question, Perpetua! If we can help with any other questions before or during your trip,
please come back and ask!
Have a magical trip!
Melissa