Annual Pass Expiration Question

Our annual passes expire 6/21/18 (purchased 6/21/17). Will we be able to enter the parks with those passes on 6/21/18? (CM on phone said yes, until midnight, but she didn’t sound too confident.)

It’s been a few years, but I used one on the “expires” date. That was a plastic card, pre magic band, that also had hour and minutes with the “expire” date. I was told to enter the park before that time, and I would be good for the rest of the day.