Appointments why is 1:00pm available?

So I am just trying to configure one day at a time right now Monday...
11:00 60 min
12:30 90 min
2:30 60 min
4:00 60 min

available times looks OK Except for the 1:pm which is when a session would be underway.

Time base set to 30
two services one provider
one service and 60 min and one service at 90 min.