hpnicfSysSummerTimeZone 1.3.6.1.4.1.11.2.14.11.15.2.3.1.1.2.2

This node describes the name of time zone in summer. The string is only used to display in local time when summer time is running. That the value of hpnicfSysLocalClock has the time zone information means that summer time is running.