The working hours settings are not appearing on the front end

I installed Appointments and configured the working hours. Everything showed up fine. Then I realized that i didn't want to start my appointments until an hour later, and every time I change my start time to an hour later, the front end still says 8:00 am.

I've tried enabling and disabling cache, and tried to clear it. I've tried turning on and off other plugins to see if it is a conflict....

Also it isn't registering that I have changed the appointment duration to 45 minutes long instead of 30 min, to give me enough time to travel between meetings.

Please help.

Many thanks,

Twila