What is the difference between AEST and AEDT?
AEST is used during the standard monthswhile AEDT is observed in the summer with daylight saving.
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AEST
Australian Eastern Standard Time
13 Dec 2025
Frequently Asked Questions
Does this area observe DST?
Noit remains on standard hours year-round. AEDT is used in the summer.
Which major cities follow this pattern?
SydneyBrisbaneand Melbourne follow this schedule.
What areas share the same hours?
Parts of QueenslandNew South WalesVictoriaand Tasmania follow this schedule.
How does this compare with ACST or ACWST?
AEST is 30 minutes behind ACST and 1 hour ahead of ACWST.
Why doesn't this area observe DST?
The decision to not observe daylight saving was made in Queensland due to the state's latitude and climatewhere the benefits of DST were deemed minimal.
How did this system get established?
AEST was introduced to standardize hours across the eastern part of Australia in 1895with daylight saving added later in some regions.
What are the typical work hours here?
Most businesses operate from 9:00 AM to 5:00 PMalthough this can vary depending on the industry.
What is the economic importance of this area?
The region is economically significant for its tourismagriculture (especially sugarcane)and financial sectorsparticularly in Sydney and Melbourne.