The System Clock and Network Time Protocol (NTP) MIB for the Unisphere Networks enterprise. The System Clock section of the MIB allows setting the system clock time, date and timezone. All definitions are based on the Gregorian calendar. The NTP portion of the MIB provides management for the local NTP client/server, which adheres to RFC 1305, the 'Network Time Protocol (Version 3) Specification, Implementation and Analysis'.