Does it account for Daylight Saving Time?

Yes, our converter uses the IANA timezone database, which includes all current DST rules for every timezone in the world.

UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks. All timezones are defined as offsets from UTC.

Can I compare multiple timezones at once?

Yes, you can add multiple cities or timezones and see the equivalent times side by side.

How many timezones are there in the world?

There are 38 distinct UTC offsets in use, ranging from UTC-12 to UTC+14. This includes half-hour (UTC+5:30 India, UTC+9:30 Australia) and 45-minute offsets (UTC+5:45 Nepal, UTC+8:45 Australia).

What is the International Date Line?

The International Date Line (IDL) runs roughly along the 180° meridian in the Pacific Ocean. When you cross it westward, you gain a day; crossing eastward, you lose a day.

Why do some timezones have 30 or 45 minute offsets?

Countries chose offsets that best matched their solar noon. India uses UTC+5:30 and Nepal uses UTC+5:45 because standard hourly offsets didn't align well with their geography.

Which country has the most timezones?

France has the most (12 timezones) due to overseas territories. Russia spans 11 timezones. The US has 6 (including Hawaii and Alaska).

Hong Kong to Sydney

+2h

Hong Kong

HKTSOURCE

Hong Kong · UTC+08:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Sydney

AEST

Australia · UTC+10:00DST observed

HH02

MM00

14:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Hong Kong

Sydney

12:00 AM

2:00 AM

4:00 AM

6:00 AM

8:00 AM

10:00 AM

12:00 PM

2:00 PM

4:00 PM

6:00 PM

8:00 PM

10:00 PM

12:00 AM+1

Green rows indicate typical business hours (9 AM - 5 PM)

HKT and AEST on the World Map

The map below highlights the HKT (Hong Kong Time) and AEST (Australian Eastern Standard Time) timezone regions across the globe.

HKT Zone

→

AEST Zone

Explore all world timezones interactively →

HKT – Hong Kong Time

UTC+08:00

Hong Kong Time (HKT, UTC+08:00) is the time zone for Hong Kong, 8 hours ahead of UTC.

Countries in HKT

Hong Kong SAR

Major Cities in HKT

Hong KongKowloonTsuen WanSha Tin

Key Facts about HKT

•Hong Kong does not observe daylight saving time and has kept UTC+08:00 since 1979.
•HKT shares its offset with China Standard Time, Singapore Time and Philippine Time.
•The Hong Kong Stock Exchange opens at 09:30 HKT.
•Hong Kong Time does not change with the seasons, so its gap to other zones is fixed.

Daylight Saving:No – UTC+08:00 year-round

Learn more about HKT on Wikipedia

AEST – Australian Eastern Standard Time

UTC+10:00

Australian Eastern Standard Time (AEST) covers eastern Australia, 10 hours ahead of UTC.

Countries in AEST

Australia (NSW, VIC, QLD, TAS, ACT)Papua New Guinea

Major Cities in AEST

SydneyMelbourneBrisbaneCanberraHobartGold Coast

Key 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.
•The Australian Securities Exchange (ASX) operates on AEST/AEDT.
•AEST is 15 hours ahead of EST during winter.

Daylight Saving:Yes – switches to AEDT

Learn more about AEST on Wikipedia

About Hong Kong

Wikipedia

Hong Kong Time (HKT) is UTC+8 with no daylight saving. As a major financial gateway to China, Hong Kong trading hours overlap with European morning sessions.

Population:7.5 million

Metro:7.5 million

Business Hours:9:00 AM - 6:00 PM HKT

Currency:HKD (HK$)

Stock Exchange:HKEX (Hong Kong Stock Exchange)

Key Landmarks

Victoria PeakTian Tan BuddhaVictoria HarbourStar FerryHong Kong Disneyland

Did You Know?

The city has one of the world's most efficient and affordable public transit systems.

Learn more about HKT timezone →

About Sydney

Wikipedia

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.

Population:5.4 million

Metro:5.4 million

Business Hours:9:00 AM - 5:00 PM AEST

Currency:AUD (A$)

Stock Exchange:ASX (Australian Securities Exchange)

Key Landmarks

Sydney Opera HouseSydney Harbour BridgeBondi BeachDarling HarbourRoyal Botanic Garden

Did You Know?

Sydney is one of the first major cities to welcome the New Year.

Learn more about AEST timezone →

Time Conversion Guide: Hong Kong to Sydney

Hong Kong runs on Hong Kong Standard Time (HKT) at UTC+08:00. Sydney runs on Australian Eastern Standard Time (AEST) at UTC+10:00. That puts Hong Kong 2 hours ahead of Sydney — a difference of +2h at the current offsets.

In practice, when it is 9:00 AM in Hong Kong it is 11:00 AM in Sydney. Midnight in Hong Kong is 2:00 AM in Sydney. Neither zone observes daylight saving time, so the offset between them stays constant all year.

Hong Kong to Sydney time conversion table

Hong Kong (HKT)	Sydney (AEST)	Day
12:00 AM	2:00 AM	same day
6:00 AM	8:00 AM	same day
7:00 AM	9:00 AM	same day
8:00 AM	10:00 AM	same day
9:00 AM	11:00 AM	same day
12:00 PM	2:00 PM	same day
3:00 PM	5:00 PM	same day
5:00 PM	7:00 PM	same day
6:00 PM	8:00 PM	same day
9:00 PM	11:00 PM	same day

Why people convert Hong Kong to Sydney time

Scheduling a call from Hong Kong to Sydney: a 10:00 AM start in Hong Kong lands at 12:00 PM in Sydney, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Hong Kong and Sydney are inside the 9-to-5 working day between 9:00 AM and 3:00 PM HKT time (11:00 AM–5:00 PM AEST). That is roughly 6 hours of usable overlap.
Coordinating a Hong Kong-based team with Sydney contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.

Always state the zone abbreviation, not just the hour. "3:00 PM HKT" is unambiguous; "3 PM" across a +2h gap is not.
Block 9:00 AM–3:00 PM HKT as the recurring meeting window if you work primarily from Hong Kong and need Sydney colleagues present.
Sydney: Clocks spring forward on Sat, Oct 3, 2026. Any meeting series spanning that date will shift by an hour in local time.

About HKT (Hong Kong Time)

Hong Kong Time (HKT) is fixed at UTC+08:00 all year and does not observe daylight saving time. Hong Kong last used summer time in 1979 and has kept a single offset since. HKT shares the UTC+08:00 offset with China Standard Time, Singapore Time, Malaysian Time, Philippine Time and Australian Western Standard Time, but is listed separately because Hong Kong maintains its own timekeeping authority. As a major financial centre, Hong Kong's trading hours set the rhythm for markets across Asia, opening at 09:30 HKT which is 01:30 in London and 20:30 the previous evening in New York.

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.

Best time to call between Hong Kong and Sydney

Both Hong Kong and Sydney sit inside the 9 AM – 5 PM working day between 9:00 AM–3:00 PM HKT, which is 11:00 AM–5:00 PM AEST. That gives roughly 6 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

Hong Kong and Sydney share 6 hours of working-hours overlap (9:00 AM–3:00 PM HKT), so scheduling a live meeting is straightforward.

Hong Kong is 2 hours ahead of Sydney (HKT UTC+08:00 → AEST UTC+10:00). The shared working window is 9:00 AM–3:00 PM HKT. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

Hong Kong

Does not observe DST

Sydney

❄ Currently in Standard Time

Standard: UTC+10:00 · DST: UTC+11:00

Clocks spring forward on Sat, Oct 3, 2026

Learn More About Time

Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:

⏳

History of Timekeeping

From sundials to atomic clocks - 5000 years of measuring time

🌍

How Time Zones Work

UTC, offsets, and why zones don't follow straight lines

☀️

Daylight Saving Time

DST dates, which countries observe it, and the ongoing debate

Frequently Asked Questions

What is the time difference between Hong Kong and Sydney?

Hong Kong (HKT, UTC+08:00) is 2 hours ahead of Sydney (AEST, UTC+10:00). The gap is currently +2h.

How do I convert Hong Kong time to Sydney time?

Add +2h to Hong Kong local time. For example, 9:00 AM in Hong Kong is 11:00 AM in Sydney.

What time is it in Sydney right now?

Sydney uses AEST at UTC+10:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +2h offset from Hong Kong.

What is the best time to call Sydney from Hong Kong?

Call between 9:00 AM and 3:00 PM HKT — that maps to 11:00 AM–5:00 PM AEST and keeps both parties inside the working day.

Which is ahead, Hong Kong or Sydney?

Hong Kong is 2 hours ahead of Sydney. When it is 12:00 PM in Hong Kong it is 2:00 PM in Sydney.

Do Hong Kong and Sydney use different time zones?

Hong Kong (Hong Kong) uses HKT at UTC+08:00, while Sydney (Australia) uses AEST at UTC+10:00. The IANA identifiers are Asia/Hong_Kong and Australia/Sydney.

Does daylight saving time affect the Hong Kong–Sydney difference?

Neither zone observes daylight saving time, so the +2h offset between Hong Kong and Sydney is fixed all year.

Which other cities share Hong Kong's time zone?

HKT also covers Hong Kong, Kowloon, Tsuen Wan, Sha Tin.

Which countries use HKT, Hong Kong's zone?

HKT is used in Hong Kong SAR.

Is there a day difference between Hong Kong and Sydney?

Not normally. The +2h gap only pushes the date over for late-evening times.

What is the time difference between Hong Kong and Sydney?

Sydney is +2h from Hong Kong.

What timezone is Hong Kong in?

Hong Kong Time (HKT) is UTC+8 with no daylight saving. As a major financial gateway to China, Hong Kong trading hours overlap with European morning sessions.

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 are the business hours in Hong Kong?

Standard business hours in Hong Kong are 9:00 AM - 6:00 PM HKT.

What are the business hours in Sydney?

Standard business hours in Sydney are 9:00 AM - 5:00 PM AEST.

What is the best time to schedule a call between Hong Kong and Sydney?

The best overlap for a call is when both cities are in business hours. Hong Kong works 9:00 AM - 6:00 PM HKT and Sydney works 9:00 AM - 5:00 PM AEST (+2h difference). Try scheduling during the overlapping window for maximum convenience.

What currencies are used in Hong Kong and Sydney?

Hong Kong uses HKD (HK$) while Sydney uses AUD (A$). Check current exchange rates when planning travel or business between these cities.

How do Hong Kong and Sydney compare in size?

Hong Kong has a population of approximately 7.5 million (metro: 7.5 million), while Sydney has approximately 5.4 million (metro: 5.4 million).

What are the major landmarks in Hong Kong and Sydney?

Hong Kong is known for Victoria Peak, Tian Tan Buddha, Victoria Harbour. Sydney is famous for Sydney Opera House, Sydney Harbour Bridge, Bondi Beach.

Do Hong Kong and Sydney have stock exchanges?

Yes. Hong Kong has the HKEX (Hong Kong Stock Exchange) and Sydney has the ASX (Australian Securities Exchange). The +2h time difference affects trading hour overlaps between these exchanges.

Which countries use HKT (Hong Kong Time)?

HKT is used in Hong Kong SAR.

Does HKT observe daylight saving time?

No, HKT does not observe daylight saving time and remains at UTC+08:00 year-round.

What are some interesting facts about HKT?

Hong Kong does not observe daylight saving time and has kept UTC+08:00 since 1979. HKT shares its offset with China Standard Time, Singapore Time and Philippine Time.