We got these changes from the Australian Antarctic Division: - Macquarie Island will stay on UTC+11 for winter and therefore not switch back from daylight savings time when other parts of Australia do on 4 April. - Casey station reverted to its normal time of UTC+8 on 5 March 2010. The change to UTC+11 is being considered as a regular summer thing but has not been decided yet. - Davis station will revert to its normal time of UTC+7 at 10 March 2010 20:00 UTC. - Mawson station stays on UTC+5. In addition to the Rule changes for Casey/Davis, it means that Macquarie will no longer be like Hobart and will have to have its own Zone created. Background: http://www.timeanddate.com/news/time/antartica-time-changes-2010.html Best regards, Steffen Thorsen - timeanddate.com