New Zealand time zone name?

Hi, I am wondering if the tz database used by Sun contains New Zealand time zones. According to this site, http://www.statoids.com/tnz.html , Tz database contains new Zealand time zones but I couldn't find NZST in this file. I organized this file displaying different tz data version used by different JRE versions. Thanks Yue <<JRE_Version_TimeZone_Map.xls>>