Hello Christie, 

Thank you for your purchase!

You can do this when you set the work hours for the employees - you can set different work time periods for different days and set for each work time period different service and location if you like. So , you assign the service that you want to be available on Sunday to the employee, and then in the work hours separate the services assigned for each day. 

When you click on the pencil icon you edit the work hours and when you click on the + sign next to 'Apply to All Days' you add a new work time period for that day. In the dropdown for services you choose the services assigned for that time period/day. 

Please note: if you leave the field empty it will mean that all services assigned to this employee will be available for this work time period.

If you have any further questions or concerns feel free to ask,

Hello Christie, 

You are welcome. 

Could you please tell me have you set your city timezone in your WordPress Settings -> General? This timezone applies to Amelia as well, and if you haven't set it there this may cause a mismatch of the time slot available between the back-end and the front-end. 

If you haven't set it, please choose your city for the timezone setting in your WordPress and let me know if this helped!