What is the time difference between Sydney and Hong Kong?

Hong Kong is 2 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 Hong Kong from Sydney?

Between 11:00–18:00 in Sydney, which is 09:00–16:00 in Hong Kong. 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 Hong Kong observe daylight saving time?

No. Hong Kong stays on UTC+8 all year, so its clocks never move.

If it is midday in Sydney, what time is it in Hong Kong?

It is 10:00 in Hong Kong, on the same calendar date. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.

Which time zones do Sydney and Hong Kong use?

Sydney uses Australia/Sydney, currently UTC+10 (AEST), and Hong Kong uses Asia/Hong_Kong, currently UTC+8. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Sydney time to Hong Kong time

Hong Kong is 2 hours behind Sydney right now, so midday in Sydney lands in the morning in Hong Kong.

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 Hong Kong.

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

Daylight saving time

Sydney changes its clocks; Hong Kong does not. The difference between them therefore shifts by an hour twice a year.

Sydney

Observes daylight saving time

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

Hong Kong

Does not observe daylight saving time

Standard: UTC+8

When you can actually talk

You have 7 hours of shared working time: 11:00–18:00 in Sydney, which is 09:00–16:00 in Hong Kong.

Sydney 11:00–18:00Hong Kong 09:00–16:00

Reference

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

	Sydney	Hong Kong
IANA zone	Australia/Sydney	Asia/Hong_Kong
Abbreviation	AEST	UTC+8
Standard offset	UTC+10	UTC+8
Daylight offset	UTC+11	—
Clock changes this year	2	0
Country	Australia	Hong Kong SAR China

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

Common questions

What is the time difference between Sydney and Hong Kong?: Hong Kong is 2 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 Hong Kong from Sydney?: Between 11:00–18:00 in Sydney, which is 09:00–16:00 in Hong Kong. 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 Hong Kong observe daylight saving time?: No. Hong Kong stays on UTC+8 all year, so its clocks never move.
If it is midday in Sydney, what time is it in Hong Kong?: It is 10:00 in Hong Kong, on the same calendar date. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.
Which time zones do Sydney and Hong Kong use?: Sydney uses Australia/Sydney, currently UTC+10 (AEST), and Hong Kong uses Asia/Hong_Kong, currently UTC+8. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.