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.