Hi Vilas, There is one site that indicates historically when Daylight Saving has started and finished since it began up until the current Daylight Saving period. The site is: http://www.bom.gov.au/climate/averages/tables/dst_times.shtml. Another site that indicates current Daylight Saving rules is: http://australia.gov.au/Time. This website only indicates there are three timezones in Australia (not taking into account that no Daylight Saving exists in Northern Territory or Queensland which would create an additional two timezones during Daylight Saving. However, this site fails to mention Central West Standard Time (ACWST) which sits 45 minutes ahead of AWST and 45 minutes behind ACST and Lord Howe Island Standard Time (ALHST) which sits 40 minutes ahead of AEST. Both these timezones also have Daylight Saving Time at the same period as Western Australia and NSW (ACT, SA, TAS, VIC) respectively. I hope this answers what you are after. Kind Regards, David Grosz Sydney, NSW, Australia -----Original Message----- From: Vilas Khare (vkhare) [mailto:vkhare@cisco.com] Sent: Thursday, 9 October 2008 1:00 PM To: tz@lecserver.nci.nih.gov Subject: Official site for Australia Timezones Hello, What is the official site for Australian time zone and recent DST changes ? Vilas --