I have contractors working on my house and I want to limit the access times they can get in my house. I have created a new user and set an access range. I want them to be allowed access from June 28-July5 from 8 AM to 5 PM. I have configured three timesz and when I select OK it tells me end time must be after start time. Click image for larger version. 

Name:	alarm.jpg 
Views:	72 
Size:	15.5 KB 
ID:	521

Hope the picture attached.

HOW do I fix this?