You can set or edit the available days and times for reservations in the Coupon Reach software.
To change them, go to your Forms, and then edit the form of your choice.
Then go to Step 2 (Properties) and click the Reservation Time field element to open it up and edit it. (In the Default form, it says "Around what time?")
Then you'll see a section on the right where you can change the opening time and closing time for each day. You can also disable any days for instance, if your client's business is only open for some days within a week.