Does it handle Daylight Saving Time?

Yes, the tool automatically adjusts for Daylight Saving Time based on the specific date you select, ensuring accurate conversions year-round.

Can I add multiple cities?

Yes, you can add as many cities as you need to the dashboard to compare times across your entire global network simultaneously.

Istanbul to Sydney

+7h

Istanbul

TRTSOURCE

Turkey · UTC+03:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Sydney

AEST

Australia · UTC+10:00DST observed

HH07

MM00

19:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Istanbul

Sydney

12:00 AM

7:00 AM

2:00 AM

9:00 AM

4:00 AM

11:00 AM

6:00 AM

1:00 PM

8:00 AM

3:00 PM

10:00 AM

5:00 PM

12:00 PM

7:00 PM

2:00 PM

9:00 PM

4:00 PM

11:00 PM

6:00 PM

1:00 AM+1

8:00 PM

3:00 AM+1

10:00 PM

5:00 AM+1

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

TRT and AEST on the World Map

The map below highlights the TRT (Turkey Time) and AEST (Australian Eastern Standard Time) timezone regions across the globe.

TRT Zone

→

AEST Zone

Explore all world timezones interactively →

TRT – Turkey Time

UTC+03:00

Turkey Time (TRT, UTC+03:00) is the single time zone used across Turkey, fixed year round since 2016.

Countries in TRT

Turkey

Major Cities in TRT

IstanbulAnkaraIzmirBursaAntalya

Key Facts about TRT

•Turkey has used a permanent UTC+03:00 since September 2016.
•TRT is level with Moscow Standard Time and Arabia Standard Time all year.
•Because Turkey kept summer time permanently, western cities see very late winter sunrises.
•Turkey previously observed daylight saving time from 1973 to 2016.

Daylight Saving:No – UTC+03:00 year-round

Learn more about TRT 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 Istanbul

Wikipedia

Istanbul operates on Turkey Time (TRT), UTC+3 year-round. As a transcontinental city, Istanbul bridges European and Asian business hours.

Population:15.5 million

Metro:15.8 million

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

Currency:TRY (₺)

Stock Exchange:Borsa Istanbul

Key Landmarks

Hagia SophiaBlue MosqueTopkapi PalaceGrand BazaarGalata Tower

Did You Know?

The Grand Bazaar is one of the world's oldest and largest covered markets with 4,000+ shops.

Learn more about TRT 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 →

Understanding the +7h Gap: Istanbul vs Sydney

Istanbul runs on Türkiye Standard Time (TRT) at UTC+03:00. Sydney runs on Australian Eastern Standard Time (AEST) at UTC+10:00. That puts Istanbul 7 hours ahead of Sydney — a difference of +7h at the current offsets.

In practice, when it is 9:00 AM in Istanbul it is 4:00 PM in Sydney. Midnight in Istanbul is 7:00 AM in Sydney. Neither zone observes daylight saving time, so the offset between them stays constant all year.

Istanbul to Sydney time conversion table

Istanbul (TRT)	Sydney (AEST)	Day
12:00 AM	7:00 AM	same day
6:00 AM	1:00 PM	same day
7:00 AM	2:00 PM	same day
8:00 AM	3:00 PM	same day
9:00 AM	4:00 PM	same day
12:00 PM	7:00 PM	same day
3:00 PM	10:00 PM	same day
5:00 PM	12:00 AM	next day
6:00 PM	1:00 AM	next day
9:00 PM	4:00 AM	next day

Why people convert Istanbul to Sydney time

Scheduling a call from Istanbul to Sydney: a 10:00 AM start in Istanbul lands at 5:00 PM in Sydney, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Istanbul and Sydney are inside the 9-to-5 working day between 9:00 AM and 10:00 AM TRT time (4:00 PM–5:00 PM AEST). That is roughly 1 hours of usable overlap.
Keeping family and friends in sync: knowing that 8:00 PM in Istanbul is 3:00 AM in Sydney makes it easy to avoid calling at 3 AM.

Always state the zone abbreviation, not just the hour. "3:00 PM TRT" is unambiguous; "3 PM" across a +7h gap is not.
Block 9:00 AM–10:00 AM TRT as the recurring meeting window if you work primarily from Istanbul 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 TRT (Turkey Time)

Turkey Time (TRT) is fixed at UTC+03:00 all year. Turkey abolished seasonal clock changes in September 2016, moving to a permanent UTC+03:00 so the whole country stays on what was formerly summer time. That leaves Istanbul, which sits close to 29°E, on an offset well ahead of its solar time — sunrise in mid-winter comes after 08:30 local. TRT shares its offset with Moscow Standard Time, Arabia Standard Time and East Africa Time, so Istanbul is level with Moscow and Riyadh all year and one hour ahead of Central European Time during the European winter.

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 Istanbul and Sydney

Both Istanbul and Sydney sit inside the 9 AM – 5 PM working day between 9:00 AM–10:00 AM TRT, which is 4:00 PM–5:00 PM AEST. That gives roughly 1 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

Istanbul and Sydney overlap for only 60 minutes (9:00 AM–10:00 AM TRT), so meetings have to be booked precisely.

Istanbul is 7 hours ahead of Sydney (TRT UTC+03:00 → AEST UTC+10:00). The shared working window is 9:00 AM–10:00 AM TRT. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

Istanbul

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 Istanbul and Sydney?

Istanbul (TRT, UTC+03:00) is 7 hours ahead of Sydney (AEST, UTC+10:00). The gap is currently +7h.

How do I convert Istanbul time to Sydney time?

Add +7h to Istanbul local time. For example, 9:00 AM in Istanbul is 4:00 PM 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 +7h offset from Istanbul.

What is the best time to call Sydney from Istanbul?

Call between 9:00 AM and 10:00 AM TRT — that maps to 4:00 PM–5:00 PM AEST and keeps both parties inside the working day.

Which is ahead, Istanbul or Sydney?

Istanbul is 7 hours ahead of Sydney. When it is 12:00 PM in Istanbul it is 7:00 PM in Sydney.

Do Istanbul and Sydney use different time zones?

Istanbul (Turkey) uses TRT at UTC+03:00, while Sydney (Australia) uses AEST at UTC+10:00. The IANA identifiers are Europe/Istanbul and Australia/Sydney.

Does daylight saving time affect the Istanbul–Sydney difference?

Neither zone observes daylight saving time, so the +7h offset between Istanbul and Sydney is fixed all year.

Which other cities share Istanbul's time zone?

TRT also covers Istanbul, Ankara, Izmir, Bursa, Antalya.

Which countries use TRT, Istanbul's zone?

TRT is used in Turkey.

Is there a day difference between Istanbul and Sydney?

Not normally. The +7h gap only pushes the date over for late-evening times.

What is the time difference between Istanbul and Sydney?

Sydney is +7h from Istanbul.

What timezone is Istanbul in?

Istanbul operates on Turkey Time (TRT), UTC+3 year-round. As a transcontinental city, Istanbul bridges European and Asian business hours.

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 Istanbul?

Standard business hours in Istanbul are 9:00 AM - 6:00 PM TRT.

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 Istanbul and Sydney?

The best overlap for a call is when both cities are in business hours. Istanbul works 9:00 AM - 6:00 PM TRT and Sydney works 9:00 AM - 5:00 PM AEST (+7h difference). Try scheduling during the overlapping window for maximum convenience.

What currencies are used in Istanbul and Sydney?

Istanbul uses TRY (₺) while Sydney uses AUD (A$). Check current exchange rates when planning travel or business between these cities.

How do Istanbul and Sydney compare in size?

Istanbul has a population of approximately 15.5 million (metro: 15.8 million), while Sydney has approximately 5.4 million (metro: 5.4 million).

What are the major landmarks in Istanbul and Sydney?

Istanbul is known for Hagia Sophia, Blue Mosque, Topkapi Palace. Sydney is famous for Sydney Opera House, Sydney Harbour Bridge, Bondi Beach.

Do Istanbul and Sydney have stock exchanges?

Yes. Istanbul has the Borsa Istanbul and Sydney has the ASX (Australian Securities Exchange). The +7h time difference affects trading hour overlaps between these exchanges.