What is the time difference between Hong Kong and Sydney?

Sydney is 2 hours ahead of Hong Kong. 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 Sydney from Hong Kong?

Between 09:00–16:00 in Hong Kong, which is 11:00–18:00 in Sydney. That is the only stretch where both cities are inside a 09:00–18:00 day.

Does Hong Kong observe daylight saving time?

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

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.

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

It is 14:00 in Sydney, 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 Hong Kong and Sydney use?

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

Convert Hong Kong time to Sydney time

Right now Sydney runs 2 hours ahead of Hong Kong. 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

Every hour of a day in Hong Kong, and what the clock reads in Sydney at that same moment.

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

Daylight saving time

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

Hong Kong

Does not observe daylight saving time

Standard: UTC+8

Sydney

Observes daylight saving time

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

When you can actually talk

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

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

Reference

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

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

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

Common questions

What is the time difference between Hong Kong and Sydney?: Sydney is 2 hours ahead of Hong Kong. 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 Sydney from Hong Kong?: Between 09:00–16:00 in Hong Kong, which is 11:00–18:00 in Sydney. That is the only stretch where both cities are inside a 09:00–18:00 day.
Does Hong Kong observe daylight saving time?: No. Hong Kong stays on UTC+8 all year, so its clocks never move.
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.
If it is midday in Hong Kong, what time is it in Sydney?: It is 14:00 in Sydney, 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 Hong Kong and Sydney use?: Hong Kong uses Asia/Hong_Kong, currently UTC+8, and Sydney uses Australia/Sydney, currently UTC+10 (AEST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.