If it's the same place all the time you could do it with night service, assign a night service destination on the trunk form and for the listed directory number and then give the console a night service button.  It's not automatic like coverage but they can turn it off and on at will as opposed to just at specific times.

We already use the nightline for night service, just wanted to make it automated based on time of day for someone to take calls from the attendant.

Hi
    You could try this, not sure if it is what you are after:

If you have Coverage Time-of-day (add cov tim 1) then you can assign your main/attendant number as an exported station with cover path set to t1 etc.  

In Add Cover Time 1 setup the times you want calls to go to another cover path e.g.

cover path 100 (point 1 attd) 00:00-12:00
cover path 200 (point 1 extension xxxx) 12:00-13:00
cover path 100 (point 1 attd) 13:00-00:00

  This should work for a DDI attd extension number but will not work for DID intercept treament and Attd FAC.

 Hope this helps
  
Good luck

 PBX