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).

HKT to Sydney

+2h

HKT

HKTSOURCE

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

HKT

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 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 →

Everything You Need to Know About HKT and Sydney Time

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

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

HKT to Sydney time conversion table

HKT (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 HKT to Sydney time

Scheduling a call from HKT to Sydney: a 10:00 AM start in HKT lands at 12:00 PM in Sydney, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both HKT 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.
Booking travel or deliveries: tracking Sydney local time against HKT keeps pickup windows and arrival estimates honest across the +2h offset.

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 HKT 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 HKT and Sydney

Both HKT 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

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

HKT 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

HKT

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 HKT and Sydney?

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

How do I convert HKT time to Sydney time?

Add +2h to HKT local time. For example, 9:00 AM in HKT 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 HKT.

What is the best time to call Sydney from HKT?

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, HKT or Sydney?

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

Do HKT and Sydney use different time zones?

HKT 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 HKT–Sydney difference?

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

Which other cities share HKT's time zone?

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

Which countries use HKT, HKT's zone?

HKT is used in Hong Kong SAR.

Is there a day difference between HKT and Sydney?

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

What is the time difference between HKT and Sydney?

Sydney is +2h from HKT.

What timezone is HKT in?

HKT operates on its local timezone.

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 Sydney?

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

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.