When Animal Crossing: New Horizons releases tomorrow, you won't be able to access future events ahead of time. Nintendo has put strict rules in place to prevent people from using time manipulation on their hardware to access future events in New Horizons.
This has been long-suspected, but never actually confirmed, until now. Nintendo's recent patch notes for Animal Crossing: New Horizons (translated by VideoGamesChronicle) state that "time travellers" won't be will not be allowed to experience future in-game events until their real-life time matches up to that of the events.
By "time travellers," Nintendo means players that change their Nintendo Switch clock and date to match that of in-game events for Animal Crossing: New Horizons. For example, if someone were to change their Switch's system settings to April 1, when New Horizons' Easter event begins, they wouldn't actually be able to access said event.
To access this, and future in-game events for Animal Crossing: New Horizons, you need to connect your Nintendo account to the game. Secondly, you need to have an active internet connection at all times in order to access all in-game events.
Animal Crossing: New Horizons launches for the Switch tomorrow on March 20, 2020. Although GameStop customers could pick up Doom Eternal a day before launch today on March 19, Animal Crossing customers will have to wait until tomorrow. If you can't wait to get to your own island with Tom Nook, check out our article on the best ways to prepare for New Horizons.