6 pm. Eastern 5 pm. Central 4 pm. Mountain3 pm. Pacific
The east coast of the U.S. is three hours ahead of the west coast of the U.S.
west coast
stays the same
stays the same
The east coast of the US
East Coast
Neither it's a central time zone
The sun is lower in the west coast. And the sun on the east coast is high in the sky
The Atlantic Ocean is on the east coast of the US. We do not know what country is 'yours' so cannot say which forms your west coast.
US route 20
East coast is The Atlantic Ocean. West coast in The Pacific Ocean.
Since parts of the east and west coasts of the US are roughly parallel, something parallel to one of them would be parallel to the other. The Appalachians are closer to the east coast than the west.