After you file

Here's another fun trick by the IRS:  I just called at 9:05 a.m. Eastern time, and they were closed.  "Our normal business hours are 7.00 a.m. to 7.00 p.m.  OK, in what time zone?  If you don't say it, I'm going to guess that it's Eastern time.  Yet, this was more than two hours after their "opening time."