At the Disneyland Resort in California, you can buy tickets and book theme park reservations up to 240 days (approximately 8 months) in advance for standard ticket holders as of 2026. For Magic Key (Annual Pass) holders, the reservation window is shorter, typically only 90 days out. This 240-day window is a rolling calendar, with new dates being released every morning at 8:00 AM Pacific Time. Because Disneyland utilizes a "reservation-based" system, simply buying the ticket isn't enough; you must also select your specific park (Disneyland Park or California Adventure) and date. For 2026 travelers, it is highly recommended to book as soon as your window opens if you plan to visit during "peak" times like the Lunar New Year (January/February), Spring Break, or the December holidays, as popular dates frequently "sell out" of reservations months in advance even if tickets are still available for purchase.