Sydney to Anchorage
-18hSydney
AESTSOURCEAnchorage
AKDTGreen rows indicate typical business hours (9 AM - 5 PM)
AEST and AKDT on the World Map
The map below highlights the AEST (Australian Eastern Standard Time) and AKDT (Alaska Standard Time) timezone regions across the globe.
AEST – Australian Eastern Standard Time
UTC+10:00Australian Eastern Standard Time (AEST) covers eastern Australia, 10 hours ahead of UTC.
- •Queensland does not observe daylight saving time, staying on AEST year-round.
- •Sydney and Melbourne switch to AEDT (UTC+11:00) in summer.
- •The Australian Securities Exchange (ASX) operates on AEST/AEDT.
- •AEST is 15 hours ahead of EST during winter.
AKST – Alaska Standard Time
UTC-09:00Alaska Standard Time (AKST) is the time zone for the state of Alaska, 9 hours behind UTC.
- •Alaska is the largest US state by area but has only about 730,000 residents.
- •Anchorage is the most populous city in AKST with about 290,000 people.
- •The Aleutian Islands use HAST instead of AKST.
About Sydney
WikipediaSydney operates on Australian Eastern Standard Time (AEST/AEDT). As Australia's financial capital, Sydney opens global markets at the start of the business day.
Sydney is one of the first major cities to welcome the New Year.
About Anchorage
WikipediaAnchorage operates on Alaska Time (AKST/AKDT), UTC-9. As a global air cargo hub, Anchorage connects Asian and American markets via polar routes.
Moose occasionally wander through the city streets.
Sydney vs Anchorage: Offsets, DST and Best Call Times
Sydney runs on Australian Eastern Standard Time (AEST) at UTC+10:00. Anchorage runs on Alaska Daylight Time (AKDT) at UTC-08:00, also currently on daylight saving time. That puts Sydney 18 hours behind Anchorage — a difference of -18h at the current offsets.
In practice, when it is 9:00 AM in Sydney it is 3:00 PM in Anchorage on the previous day. Midnight in Sydney is 6:00 AM in Anchorage.Anchorage observes daylight saving time while Sydney does not, so the gap narrows or widens by an hour part of the year.
Sydney to Anchorage time conversion table
| Sydney (AEST) | Anchorage (AKDT) | Day |
|---|---|---|
| 12:00 AM | 6:00 AM | previous day |
| 6:00 AM | 12:00 PM | previous day |
| 7:00 AM | 1:00 PM | previous day |
| 8:00 AM | 2:00 PM | previous day |
| 9:00 AM | 3:00 PM | previous day |
| 12:00 PM | 6:00 PM | previous day |
| 3:00 PM | 9:00 PM | previous day |
| 5:00 PM | 11:00 PM | previous day |
| 6:00 PM | 12:00 AM | same day |
| 9:00 PM | 3:00 AM | same day |
Why people convert Sydney to Anchorage time
- Scheduling a call from Sydney to Anchorage: a 10:00 AM start in Sydney lands at 4:00 PM in Anchorage the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -18h gap: Sydney and Anchorage have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in Anchorage is 3:00 PM in Sydney.
- Keeping family and friends in sync: knowing that 8:00 PM in Sydney is 2:00 AM in Anchorage makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM AEST" is unambiguous; "3 PM" across a -18h gap is not.
- With a -18h gap there is no shared 9-to-5 window, so alternate the early start: one week Sydney takes the early slot, the next week Anchorage does.
- Sydney: Clocks spring forward on Sat, Oct 3, 2026. Re-check this page after that date because the offset changes and so does the -18h gap.
- Anchorage: Clocks fall back on Sun, Nov 1, 2026. Any meeting series spanning that date will shift by an hour in local time.
About AEST (Australian Eastern Standard Time)
Australian Eastern Standard Time (AEST) is used in the eastern states of Australia including New South Wales, Victoria, Queensland, Tasmania, and the ACT. During summer (October to April), NSW, VIC, TAS, and ACT switch to Australian Eastern Daylight Time (AEDT, UTC+11:00), while Queensland remains on AEST year-round.
About AKST (Alaska Standard Time)
Alaska Standard Time (AKST) is used in nearly all of Alaska. Due to Alaska's vast geographic size, the Aleutian Islands use Hawaii-Aleutian Standard Time instead. During summer months, Alaska switches to Alaska Daylight Time (AKDT, UTC-08:00).
Best time to call between Sydney and Anchorage
With a -18h offset there is no overlap inside a normal 9 AM – 5 PM day. Anchorage opens at 9:00 AM AKDT, which is 3:00 PM in Sydney, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Sydney and Anchorage have no shared working hours because of the -18h gap. Teams need to alternate early starts or rely on asynchronous handovers.
Sydney is 18 hours behind Anchorage (AEST UTC+10:00 → AKDT UTC-08:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Sydney
❄ Currently in Standard Time
Standard: UTC+10:00 · DST: UTC+11:00
Clocks spring forward on Sat, Oct 3, 2026
Anchorage
☀ Currently in DST
Standard: UTC-09:00 · DST: UTC-08:00
Clocks fall back on Sun, Nov 1, 2026
⚠ These locations are currently in different DST states, so the time difference may change when clocks adjust.
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between Sydney and Anchorage?
Sydney (AEST, UTC+10:00) is 18 hours behind Anchorage (AKDT, UTC-08:00). The gap is currently -18h.
How do I convert Sydney time to Anchorage time?
Add -18h to Sydney local time. For example, 9:00 AM in Sydney is 3:00 PM in Anchorage (previous day).
What time is it in Anchorage right now?
Anchorage uses AKDT at UTC-08:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -18h offset from Sydney.
What is the best time to call Anchorage from Sydney?
There is no shared working-hours window because of the -18h gap. The closest option is 1:00 PM in Sydney, which is 7:00 PM in Anchorage.
Which is behind, Sydney or Anchorage?
Sydney is 18 hours behind Anchorage. When it is 12:00 PM in Sydney it is 6:00 PM in Anchorage.
Do Sydney and Anchorage use different time zones?
Sydney (Australia) uses AEST at UTC+10:00, while Anchorage (USA) uses AKDT at UTC-08:00. The IANA identifiers are Australia/Sydney and America/Anchorage.
Does daylight saving time affect the Sydney–Anchorage difference?
Yes at the moment: Anchorage is on daylight saving time and Sydney is not, so the -18h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share Sydney's time zone?
AEST also covers Sydney, Melbourne, Brisbane, Canberra, Hobart, Gold Coast.
Which countries use AEST, Sydney's zone?
AEST is used in Australia (NSW, VIC, QLD, TAS, ACT), Papua New Guinea.
Is there a day difference between Sydney and Anchorage?
Sometimes. The -18h gap is large enough that 8:00 PM or later in Sydney already falls on the in Anchorage.
What is the time difference between Sydney and Anchorage?
Anchorage is -18h from Sydney.
What timezone is Sydney in?
Sydney operates on Australian Eastern Standard Time (AEST/AEDT). As Australia's financial capital, Sydney opens global markets at the start of the business day.
What timezone is Anchorage in?
Anchorage operates on Alaska Time (AKST/AKDT), UTC-9. As a global air cargo hub, Anchorage connects Asian and American markets via polar routes.
What are the business hours in Sydney?
Standard business hours in Sydney are 9:00 AM - 5:00 PM AEST.
What are the business hours in Anchorage?
Standard business hours in Anchorage are 8:00 AM - 5:00 PM AKST.
What is the best time to schedule a call between Sydney and Anchorage?
The best overlap for a call is when both cities are in business hours. Sydney works 9:00 AM - 5:00 PM AEST and Anchorage works 8:00 AM - 5:00 PM AKST (-18h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Sydney and Anchorage?
Sydney uses AUD (A$) while Anchorage uses USD ($). Check current exchange rates when planning travel or business between these cities.
How do Sydney and Anchorage compare in size?
Sydney has a population of approximately 5.4 million (metro: 5.4 million), while Anchorage has approximately 287,000 (metro: 398,000).
What are the major landmarks in Sydney and Anchorage?
Sydney is known for Sydney Opera House, Sydney Harbour Bridge, Bondi Beach. Anchorage is famous for Anchorage Museum, Tony Knowles Coastal Trail, Flattop Mountain.
Do Sydney and Anchorage have stock exchanges?
Yes. Sydney has the ASX (Australian Securities Exchange) and Anchorage has the N/A (Uses NYSE/NASDAQ). The -18h time difference affects trading hour overlaps between these exchanges.
Which countries use AEST (Australian Eastern Standard Time)?
AEST is used in Australia (NSW, VIC, QLD, TAS, ACT), Papua New Guinea.
Does AEST observe daylight saving time?
Yes, AEST switches to AEDT during summer months.
What are some interesting facts about AEST?
Queensland does not observe daylight saving time, staying on AEST year-round. Sydney and Melbourne switch to AEDT (UTC+11:00) in summer.
Which cities are in the AKST timezone?
Major cities in the AKST timezone include Anchorage, Fairbanks, Juneau, Sitka, Wasilla.
What is the UTC offset for AKST?
Alaska Standard Time (AKST) is at UTC-09:00. During daylight saving time, it shifts to AKDT.
What should I know about the AKST timezone?
Alaska is the largest US state by area but has only about 730,000 residents. Anchorage is the most populous city in AKST with about 290,000 people.
When is it midnight in Sydney, what time is it in Anchorage?
When it is 12:00 AM (midnight) in Sydney (AEST), it is -18h later in Anchorage (AKST).
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