The picker currently doesn't provide such an option on a day-by-day basis. I'm working on a replacement library that will, but it is still many months from release.
Meanwhile, you can modify the code yourself to accomplish this, as follows:
Near line #3271 in anytime.5.0.5.js, find this:
$(this).AnyTime_current( hr == i,
((!_this.earliest)||(cmpHi.getTime()>=_this.earliest)) &&
((!_this.latest)||(cmpLo.getTime()<=_this.latest)) );
The second argument to AnyTime_current()
determines whether the button can be selected. The variable i
here is the hour represented by the button. Modify the argument to exclude your off-hours:
$(this).AnyTime_current( hr == i,
((!_this.earliest)||(cmpHi.getTime()>=_this.earliest)) &&
((!_this.latest)||(cmpLo.getTime()<=_this.latest)) &&
( i > 8 ) && ( i < 19 ) );
Please let me know whether it works for you.