What is the time difference between Sydney and Anchorage?

Anchorage is 18 hours behind Sydney. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.

When is the best time to call Anchorage from Sydney?

Between 10:00–12:00 in Sydney, which is 16:00–18:00 in Anchorage. That is the only stretch where both cities are inside a 09:00–18:00 day.

Does Sydney observe daylight saving time?

Yes. Sydney runs on UTC+10 in winter and UTC+11 in summer. The next change is on 2026-10-04, when clocks go forward by 60 minutes.

Does Anchorage observe daylight saving time?

Yes. Anchorage runs on UTC-9 in winter and UTC-8 in summer. The next change is on 2026-11-01, when clocks go back by 60 minutes.

If it is midday in Sydney, what time is it in Anchorage?

It is 18:00 in Anchorage, still on the previous day. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.

Which time zones do Sydney and Anchorage use?

Sydney uses Australia/Sydney, currently UTC+10 (AEST), and Anchorage uses America/Anchorage, currently UTC-8 (AKDT). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Sydney time to Anchorage time

Right now Anchorage runs 18 hours behind Sydney. That gap is not fixed: it moves when either city changes its clocks.

Convert a time

From

Date

Time

Converted time

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The converter needs JavaScript to run. Everything below — offsets, daylight saving dates and the hour-by-hour table — is part of the page and works without it.

Hour by hour

The whole day mapped across: read down the left for Sydney, across for Anchorage.

Sydney	Anchorage
00:00	06:00previous day
01:00	07:00previous day
02:00	08:00previous day
03:00	09:00previous day
04:00	10:00previous day
05:00	11:00previous day
06:00	12:00previous day
07:00	13:00previous day
08:00	14:00previous day
09:00	15:00previous day
10:00	16:00previous day
11:00	17:00previous day
12:00	18:00previous day
13:00	19:00previous day
14:00	20:00previous day
15:00	21:00previous day
16:00	22:00previous day
17:00	23:00previous day
18:00	00:00
19:00	01:00
20:00	02:00
21:00	03:00
22:00	04:00
23:00	05:00

Daylight saving time

Sydney and Anchorage both observe daylight saving. Where their change dates differ, so does the gap between them for the weeks in between.

Sydney

Observes daylight saving time

Standard: UTC+10
Daylight: UTC+11
Next change: 2026-10-04 +60m

Anchorage

Observes daylight saving time

Standard: UTC-9
Daylight: UTC-8
Next change: 2026-11-01 −60m

When you can actually talk

You have 2 hours of shared working time: 10:00–12:00 in Sydney, which is 16:00–18:00 in Anchorage.

Sydney 10:00–12:00Anchorage 16:00–18:00
Sydney 09:00–10:00Anchorage 15:00–16:00

Reference

The underlying data, in case you need to put it in a calendar invitation or a configuration file.

	Sydney	Anchorage
IANA zone	Australia/Sydney	America/Anchorage
Abbreviation	AEST	AKDT
Standard offset	UTC+10	UTC-9
Daylight offset	UTC+11	UTC-8
Clock changes this year	2	2
Country	Australia	United States

Example, not the current time. Live times appear once the page loads.

Common questions

What is the time difference between Sydney and Anchorage?: Anchorage is 18 hours behind Sydney. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.
When is the best time to call Anchorage from Sydney?: Between 10:00–12:00 in Sydney, which is 16:00–18:00 in Anchorage. That is the only stretch where both cities are inside a 09:00–18:00 day.
Does Sydney observe daylight saving time?: Yes. Sydney runs on UTC+10 in winter and UTC+11 in summer. The next change is on 2026-10-04, when clocks go forward by 60 minutes.
Does Anchorage observe daylight saving time?: Yes. Anchorage runs on UTC-9 in winter and UTC-8 in summer. The next change is on 2026-11-01, when clocks go back by 60 minutes.
If it is midday in Sydney, what time is it in Anchorage?: It is 18:00 in Anchorage, still on the previous day. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.
Which time zones do Sydney and Anchorage use?: Sydney uses Australia/Sydney, currently UTC+10 (AEST), and Anchorage uses America/Anchorage, currently UTC-8 (AKDT). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.