Tokyo to Istanbul
-6hTokyo
JSTSOURCEIstanbul
TRTGreen rows indicate typical business hours (9 AM - 5 PM)
JST and TRT on the World Map
The map below highlights the JST (Japan Standard Time) and TRT (Turkey Time) timezone regions across the globe.
JST – Japan Standard Time
UTC+09:00Japan Standard Time (JST) is the time zone for Japan, 9 hours ahead of UTC.
- •Japan does not observe daylight saving time.
- •Tokyo is the most populous metropolitan area in the world.
- •The Tokyo Stock Exchange operates from 9:00 AM to 3:00 PM JST.
- •JST is 14 hours ahead of EST and 9 hours ahead of GMT.
TRT – Turkey Time
UTC+03:00Turkey Time (TRT, UTC+03:00) is the single time zone used across Turkey, fixed year round since 2016.
- •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.
About Tokyo
WikipediaTokyo operates on Japan Standard Time (JST), which is 14 hours ahead of New York. As Asia's largest financial hub, Tokyo trading hours are crucial for global markets.
The Tokyo subway system moves approximately 8.7 million passengers daily.
About Istanbul
WikipediaIstanbul operates on Turkey Time (TRT), UTC+3 year-round. As a transcontinental city, Istanbul bridges European and Asian business hours.
The Grand Bazaar is one of the world's oldest and largest covered markets with 4,000+ shops.
Understanding the -6h Gap: Tokyo vs Istanbul
Tokyo runs on Japan Standard Time (JST) at UTC+09:00. Istanbul runs on Türkiye Standard Time (TRT) at UTC+03:00. That puts Tokyo 6 hours behind Istanbul — a difference of -6h at the current offsets.
In practice, when it is 9:00 AM in Tokyo it is 3:00 AM in Istanbul. Midnight in Tokyo is 6:00 PM in Istanbul. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Tokyo to Istanbul time conversion table
| Tokyo (JST) | Istanbul (TRT) | Day |
|---|---|---|
| 12:00 AM | 6:00 PM | previous day |
| 6:00 AM | 12:00 AM | same day |
| 7:00 AM | 1:00 AM | same day |
| 8:00 AM | 2:00 AM | same day |
| 9:00 AM | 3:00 AM | same day |
| 12:00 PM | 6:00 AM | same day |
| 3:00 PM | 9:00 AM | same day |
| 5:00 PM | 11:00 AM | same day |
| 6:00 PM | 12:00 PM | same day |
| 9:00 PM | 3:00 PM | same day |
Why people convert Tokyo to Istanbul time
- Scheduling a call from Tokyo to Istanbul: a 10:00 AM start in Tokyo lands at 4:00 AM in Istanbul, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Tokyo and Istanbul are inside the 9-to-5 working day between 3:00 PM and 5:00 PM JST time (9:00 AM–11:00 AM TRT). That is roughly 2 hours of usable overlap.
- Booking travel or deliveries: tracking Istanbul local time against Tokyo keeps pickup windows and arrival estimates honest across the -6h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM JST" is unambiguous; "3 PM" across a -6h gap is not.
- Block 3:00 PM–5:00 PM JST as the recurring meeting window if you work primarily from Tokyo and need Istanbul colleagues present.
About JST (Japan Standard Time)
Japan Standard Time (JST) is the standard time zone for all of Japan. Japan does not observe daylight saving time. JST is 9 hours ahead of UTC and 14 hours ahead of EST. The Tokyo Stock Exchange, the world's third largest by market capitalization, operates on JST. South Korea uses the same offset (KST) but it is a distinct time zone.
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.
Best time to call between Tokyo and Istanbul
Both Tokyo and Istanbul sit inside the 9 AM – 5 PM working day between 3:00 PM–5:00 PM JST, which is 9:00 AM–11:00 AM TRT. That gives roughly 2 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Tokyo and Istanbul overlap for about 2 hours during the working day — enough for meetings if you avoid the edges of the window.
Tokyo is 6 hours behind Istanbul (JST UTC+09:00 → TRT UTC+03:00). The shared working window is 3:00 PM–5:00 PM JST. Remember to re-check around daylight-saving transitions.
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between Tokyo and Istanbul?
Tokyo (JST, UTC+09:00) is 6 hours behind Istanbul (TRT, UTC+03:00). The gap is currently -6h.
How do I convert Tokyo time to Istanbul time?
Add -6h to Tokyo local time. For example, 9:00 AM in Tokyo is 3:00 AM in Istanbul.
What time is it in Istanbul right now?
Istanbul uses TRT at UTC+03:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -6h offset from Tokyo.
What is the best time to call Istanbul from Tokyo?
Call between 3:00 PM and 5:00 PM JST — that maps to 9:00 AM–11:00 AM TRT and keeps both parties inside the working day.
Which is behind, Tokyo or Istanbul?
Tokyo is 6 hours behind Istanbul. When it is 12:00 PM in Tokyo it is 6:00 AM in Istanbul.
Do Tokyo and Istanbul use different time zones?
Tokyo (Japan) uses JST at UTC+09:00, while Istanbul (Turkey) uses TRT at UTC+03:00. The IANA identifiers are Asia/Tokyo and Europe/Istanbul.
Does daylight saving time affect the Tokyo–Istanbul difference?
Neither zone observes daylight saving time, so the -6h offset between Tokyo and Istanbul is fixed all year.
Which other cities share Tokyo's time zone?
JST also covers Tokyo, Osaka, Yokohama, Nagoya, Sapporo, Kyoto, Kobe, Fukuoka and 1 more.
Which countries use JST, Tokyo's zone?
JST is used in Japan.
Is there a day difference between Tokyo and Istanbul?
Not normally. The -6h gap only pushes the date over the previous day.
What is the time difference between Tokyo and Istanbul?
Istanbul is -6h from Tokyo.
What timezone is Tokyo in?
Tokyo operates on Japan Standard Time (JST), which is 14 hours ahead of New York. As Asia's largest financial hub, Tokyo trading hours are crucial for global markets.
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 are the business hours in Tokyo?
Standard business hours in Tokyo are 9:00 AM - 6:00 PM JST.
What are the business hours in Istanbul?
Standard business hours in Istanbul are 9:00 AM - 6:00 PM TRT.
What is the best time to schedule a call between Tokyo and Istanbul?
The best overlap for a call is when both cities are in business hours. Tokyo works 9:00 AM - 6:00 PM JST and Istanbul works 9:00 AM - 6:00 PM TRT (-6h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Tokyo and Istanbul?
Tokyo uses JPY (¥) while Istanbul uses TRY (₺). Check current exchange rates when planning travel or business between these cities.
How do Tokyo and Istanbul compare in size?
Tokyo has a population of approximately 14 million (metro: 37.4 million), while Istanbul has approximately 15.5 million (metro: 15.8 million).
What are the major landmarks in Tokyo and Istanbul?
Tokyo is known for Tokyo Tower, Shibuya Crossing, Senso-ji Temple. Istanbul is famous for Hagia Sophia, Blue Mosque, Topkapi Palace.
Do Tokyo and Istanbul have stock exchanges?
Yes. Tokyo has the TSE (Tokyo Stock Exchange) and Istanbul has the Borsa Istanbul. The -6h time difference affects trading hour overlaps between these exchanges.
Which countries use JST (Japan Standard Time)?
JST is used in Japan.
Does JST observe daylight saving time?
No, JST does not observe daylight saving time and remains at UTC+09:00 year-round.
What are some interesting facts about JST?
Japan does not observe daylight saving time. Tokyo is the most populous metropolitan area in the world.
Which cities are in the TRT timezone?
Major cities in the TRT timezone include Istanbul, Ankara, Izmir, Bursa, Antalya.
What is the UTC offset for TRT?
Turkey Time (TRT) is at UTC+03:00.
What should I know about the TRT timezone?
Turkey has used a permanent UTC+03:00 since September 2016. TRT is level with Moscow Standard Time and Arabia Standard Time all year.
When is it midnight in Tokyo, what time is it in Istanbul?
When it is 12:00 AM (midnight) in Tokyo (JST), it is -6h later in Istanbul (TRT).
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