What is the difference between Business Hours and a service provider's Working Time?

1. Business location working hours:

It defines when the business is open.

This article will help you set up business hours: How do I update my business location open hours? – Appointible Help Center

2. Each service provider will have personal working hours:

This article will help you edit your employee's business hours: How do I update working hours from the calendar? – Appointible Help Center