supplemental conditions. Special provisions in a contract that modify or qualify its general provisions.
Pacific Standard Time is two hours behind Central Standard Time. Pacific Daylight Time is one hour behind Central Standard Time.
The west coast is 3 hours behind Eastern Daylight Time and is called Pacific Time. Central time is one hour behind Eastern time, Mountain time is 2 hours behind Eastern time. From fall through spring the country is in Standard time, when most states set their clocks back one hour. Source(s):