Oregon Scientific Atomic Clock

I just bought an Oregon Scientific Atomic Clock for travel and the darn thing will not display the correct time. I though the whole point was to not have to set it?
There are 4 zones (one for each time zone), mine is "E" for eastern, which is correct. I push the ^ button, it flashes for awhile, but then nothing happens.

I'm very close to sending it back, but first I'll try to find some help to fix it. Based on this experience alone, I don't recommend anyone but this, or any of their clocks!

I just found this:

When the unit is new and just out of the box, synchronization with the U.S. atomic clock can take upto 72 hours.

UPDATE - the clock is now displaying the correct time. :-)