Automatic door lock

[Railer]

I stopped at a dog wash where the door locked at pre set time. Occupants could exit after the door locked but can not get back in until next morning when door automatically unlocks. We have standard glass and steel/ aluminum commercial door that has the vertical handle to pull outward and the horizontal push bar to push outward for exiting. Any ideas of a supplier of this type of locking system?

 

[BBE]

I'm sure there are many ways to do this, but any locksmith could set you up with an electric strike lock. From there you can just put it on a wall outlet timer that you buy from home depot.