There are two ways to enter availabilities on MeetFox:
1) Unified for all offers:
Under "Availabilities" you can enter your general working hours. All offers will be by default based on these unless you set them individually for each offer (see point 2 below).
2) Per service:
Under "My offer" you can also specify individual working hours per offer. Click on the edit icon of any service, select "Availability", deactivate the option "Use default availability" by clicking on the blue toggle and enter specific availabilities for this service.