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.
Central time or CST is two-hours ahead of Pacific time or PST. Therefore, if it is 7am PST, it is 9am CST. For reference, the east coast is three hours ahead of the west coast and the east coast is one-hour ahead of central time.