Steven Abner wrote:
http://www.antarctica.gov.au/living-and-working/stations/time
Interesting page.
which has Casey as 0 hours from AEST/AEDT.
No need to pivot around any Australian mainland timezone. I have just loaded the page at 2011-12-08 19:48 UT, and it says: Station/location Current time Hours behind AEST/AEDT Aurora Australis 06:48 AM, 09 Dec 2011 0 Casey station 06:48 AM, 09 Dec 2011 0 Davis station 12:48 AM, 09 Dec 2011 6 Macquarie Island station 06:48 AM, 09 Dec 2011 0 Mawson station 12:48 AM, 09 Dec 2011 6 Wilkins Aerodrome 06:48 AM, 09 Dec 2011 0 Subtracting the current UT time from the "Current time" column implies that Davis and Mawson are on UT+5h while the others are on UT+11h. The Olson antarctica file has Casey on UT+8h, Davis on UT+7h, Mawson on UT+5h, and Macquarie on UT+11h. So we're agreeing for Mawson and Macquarie, and disagreeing for Casey and Davis. The web page refers to varying DST regimes. Our file says that none of the Australian bases observe DST. So it's possible that the difference is just DST rules that we don't know about. -zefram