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.
Pacific Time is 2 hours behind Central Time. Central Time is 2 hours ahead of Pacific Time. The mainland U.S. has four time zones (Alaska and Hawaii each have their own time zones, which makes a total of 6 different time zones for the U.S.).