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 Standard Time (CST) is six hours behind Coordinated Universal Time (UTC). During summer most (but not all) of the zone uses daylight saving time (DST), and changes to Central Daylight Time (CDT) which is five hours behind UTC.