self calibrating clock via wifi?

["bob" <nospam@xxxxxxxxxxx>]

I have some atomic clocks that are not working because apparently the clock
signal is too weak at my apartment.

Since I have a wifi router in my apartment, I wonder if there is any clock
that calibrates itself via internet and is wifi enabled?

I can use a PC or a tablet computer to do this, but I'm looking for
something cheaper (under $50).