Revisiting Australian time zone abbreviations

Richard Stanway r.stanway at
Sun Jun 13 21:48:44 UTC 2010

I came across this mailing list while researching a time zone issue on our
website which indirectly makes use of the zoneinfo. We localize some
timestamps to the visitors time zone, but the site is trafficked by a
predominately US audience where the abbreviation "EST" is used quite often.
It is difficult for an Australian visitor to realize that the times they are
seeing have been localized since they show for example as "8pm EST" due to
the abbreviations used for the Australian time zones, leading to confusion
as to whether it is US EST or AU EST.

The last discussion on AEST vs EST seems to be about 9 years old and I
figured it was time to revisit the subject now that there seems to be an
official source. The government website of Australia states the time zone
names for Australia are Australian Eastern Standard Time (AEST), Australian
Central Standard Time (ACST) and Australian Western Standard Time (AWST)
with Australian Eastern Daylight Time (AEDT) and Australian Central Daylight
Time (ACDT) when observing daylight saving time. Reference:

Any chance of these official names making it into a zoneinfo update?
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