Hey there, hi there, Angelique! Welcome to planDisney. We are so glad you've stopped by with your ticket question.
I've got great news for you! If you have a 2-day or multiday ticket and have only used one day on the ticket, you have 13 days after the first day of use to use the ticket. If it's telling you the ticket expires on August 19, 2023, then yes you can use the ticket the day before on August 18, 2023. You will just need to log in to your Disney account and make your
theme park ticket reservation. That is required along with your ticket for entry into the parks. I hope you can make it work to use that last day before your ticket expires.
If you are heading to Disney California Adventure Park and haven't gotten a chance to see
Rogers: The Musical, you may want to prioritize that if it interests you. This show is a limited run and will be going away on August 31, 2023. If you will be over at Disneyland Park, I absolutely love the
Tale of the Lion King show. Both of these are a great midafternoon options to beat the heat and rest your legs for a bit!
Angelique, thanks so much for stopping by! See you real soon!
Carrie