Hello, in my application, I used Antarctica/McMurdo in some test case. In version 2013d, file antarctica contained an entry # # # McMurdo, Ross Island, since 1955-12 # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Antarctica/McMurdo 0 - zzz 1956 12:00 NZAQ NZ%sT which is gone in version 2013g. However, McMurdo is still referenced both in australasia in a link, and in the zone.tab file: ~/tmp/tzdata$ grep McMurdo * antarctica:# "in the US Camp (East Camp) we have been on New Zealand (McMurdo) antarctica:# McMurdo Station, Ross Island, since 1955-12 antarctica:# as supplies for the station were coming from McMurdo Sound, antarctica:# We use the same time as McMurdo does. antarctica:# See 'australasia' for Antarctica/McMurdo. australasia:Link Pacific/Auckland Antarctica/McMurdo zone.tab:AQ -7750+16636 Antarctica/McMurdo McMurdo, South Pole, Scott (New Zealand time) ~/tmp/tzdata$ I guess this is a inconsistency in the tzdata files...? Wolfgang