Daylight Saving Time
Australia Summer Time: October - March
Daylight Saving Time (DST) has been implemented within Australia in various
forms since the early 1900s. The following sections provide more detailed
information
Implementation dates of Daylight
Saving Time in Australia
Glossary
LST - Local Standard Time
The globe is divided into Standard time zones and Local Standard Time is the
time specified for each zone. This is usually done in terms of hours ahead or
behind GMT. The LST zones in Australia are as follows:AEST - Australian Eastern Standard Time (GMT +10) in Queensland,
New South Wales, Victoria and Tasmania
ACST - Australian Central Standard Time (GMT +9.5) in Northern
Territories and South Australia
AWST - Australian Western Standard Time (GMT +8) in Western
Australia.
DST - Daylight Saving TimeAlso known as summer time, Daylight Saving Time occurs when the time on local
clocks is advanced forward by one hour at the beginning of the defined period of
DST, and returned back by one hour at the end of DST. The exact dates between
which DST is to apply can be obtained from the relevant Australian State
governments.
| States/Territory |
Start: |
Finish: |
Australian Capital Territory
New South Wales
Victoria
South Australia
Western Australia |
Last
Sunday
in October
(2.00 am) |
Last
Sunday
in
March
(3.00 am) |
| Tasmania |
First
Sunday
in October
(2.00 am) |
Last
Sunday
in
March
(3.00 am) |
Queensland and the Northern Territory do not observe
daylight saving.
Within Australia DST across the three time zones is generally denoted by
AEDT - Australian Eastern Daylight Time
Daylight Saving Dates
At start of daylight saving period, move clock forward one hour at 2 am
EST (Eastern Standard Time).
At end of daylight saving period, move clock back one hour at 2 am EST
(Eastern Standard Time).
ACDT - Australian Central Daylight Time
AWDT - Australian Western Daylight Time
Experimentally in use between 2006 - 2009 and then abandoned.
Local Time
Normally this is the same as Local Standard Time, but in periods of Daylight
Saving an hour is added to the local clock, making Local Time an hour ahead of
Local Standard Time (i.e. Local time = DST). | 
