Room Calendars in Exchange 2010

Question

I can't schedule a meeting outside the set hours of 8am-5pm in any room calendar or the "room" disappears.   The hours show 8-5 and even if I change the hours in GP to show 6-6, which I can, I can still only schedule between 8-5.
I created a Room List and several room calendars using powershell with no issues.  I have set the working hours start and end to 06:00:00 start & 18:00:00 end times.  I've checked each room calendar and everything looks good.  I have went
through every known setting & cmdlet I know.  What is controlling the scheduling times?

Answer 1

Hi Winnie,
Thanks for the response but I've been through that a dozen times and everything is correct.  I even checked again and it's set right but still displaying wrong to the end user.  As you can see from the pictures below the earliest suggested time
the user sees starts at 8:30am and the last time is 4:30pm (30 Minute increments).
Please be aware that a user can still click the 'Scheduling Assistant' from within the Meeting request and set it from there.  But we want the individual rooms to disappear from the Suggested Times list if it as already been scheduled during the time
desired.  This feature already works great but the Suggested Times needs to coincide with the working hours or No Rooms show up in the list prior to 8:00am.
I have 5 rooms and they are all set just like this one. 
From Outlook 2010, Default Meeting template. Won't show any time earlier/later than 8am-5pm.
View of Outlook 2010 Meeting Template when the Scheduling Assistant is clicked.
Rjobe