Hi, Im not too sure on the correct formatting for submitting changes to tzdata, or if the Antarctic tzdata is still being maintained? There is a change for the Australian Antarctic zone Antarctica/Casey went to +1100 for Summer operations on Sunday 04 October at 2am. Source: http://www.antarctica.gov.au/living-and-working/stations/weather and internal emails Also, there is an location for Wilkins Aerodrome that technically can have its own timeone separate from Casey. If it is useful I can get some historical dates? Michael Chinn Information Communications & Technology Section Australian Antartic Division 203 Channel Hwy Kingston TAS 7050 Ph 03 6232 3289 Fax 0362832574 ___________________________________________________________________________ Australian Antarctic Division - Commonwealth of Australia IMPORTANT: This transmission is intended for the addressee only. If you are not the intended recipient, you are notified that use or dissemination of this communication is strictly prohibited by Commonwealth law. If you have received this transmission in error, please notify the sender immediately by e-mail or by telephoning +61 3 6232 3209 and DELETE the message. Visit our web site at http://www.antarctica.gov.au/ ___________________________________________________________________________