Your business opening hours indicate the usual times your business is open. For e.g. your business is usually open Mon - Fri 9am to 7 pm.
You can upload or change this information on your Hakema Account anytime.
Login to your admin account with your credentials. Go to Settings -> Business
Now to to second section and click on Edit button and you will see this
Enter your Opening Hours as you like and then press Confirm to save them.