Tokyo to Osaka
+0hTokyo
JSTSOURCEOsaka
JSTGreen rows indicate typical business hours (9 AM - 5 PM)
JST and JST on the World Map
The map below highlights the JST (Japan Standard Time) and JST (Japan Standard 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.
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.
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 Osaka
WikipediaOsaka operates on Japan Standard Time (JST), UTC+9. As Japan's second economic center and a manufacturing hub, Osaka shares business hours with Tokyo.
Osaka Castle was originally built in 1583 and has been rebuilt several times.
Tokyo to Osaka Time Difference – Complete Guide
Tokyo runs on Japan Standard Time (JST) at UTC+09:00. Osaka runs on Japan Standard Time (JST) at UTC+09:00. That puts Tokyo no time difference Osaka — a difference of +0h at the current offsets.
In practice, when it is 9:00 AM in Tokyo it is 9:00 AM in Osaka. Midnight in Tokyo is 12:00 AM in Osaka. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Tokyo to Osaka time conversion table
| Tokyo (JST) | Osaka (JST) | Day |
|---|---|---|
| 12:00 AM | 12:00 AM | same day |
| 6:00 AM | 6:00 AM | same day |
| 7:00 AM | 7:00 AM | same day |
| 8:00 AM | 8:00 AM | same day |
| 9:00 AM | 9:00 AM | same day |
| 12:00 PM | 12:00 PM | same day |
| 3:00 PM | 3:00 PM | same day |
| 5:00 PM | 5:00 PM | same day |
| 6:00 PM | 6:00 PM | same day |
| 9:00 PM | 9:00 PM | same day |
Why people convert Tokyo to Osaka time
- Scheduling a call from Tokyo to Osaka: a 10:00 AM start in Tokyo lands at 10:00 AM in Osaka, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Tokyo and Osaka are inside the 9-to-5 working day between 9:00 AM and 5:00 PM JST time (9:00 AM–5:00 PM JST). That is roughly 8 hours of usable overlap.
- Watching a live event or market open: Tokyo viewers need 9:00 AM in Osaka to catch a 9:00 AM start there, and 12:00 AM if the event is anchored to Tokyo.
- Always state the zone abbreviation, not just the hour. "3:00 PM JST" is unambiguous; "3 PM" across a +0h gap is not.
- Block 9:00 AM–5:00 PM JST as the recurring meeting window if you work primarily from Tokyo and need Osaka 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 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.
Best time to call between Tokyo and Osaka
Both Tokyo and Osaka sit inside the 9 AM – 5 PM working day between 9:00 AM–5:00 PM JST, which is 9:00 AM–5:00 PM JST. That gives roughly 8 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Tokyo and Osaka share 8 hours of working-hours overlap (9:00 AM–5:00 PM JST), so scheduling a live meeting is straightforward.
Tokyo is no time difference Osaka (JST UTC+09:00 → JST UTC+09:00). The shared working window is 9:00 AM–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 Osaka?
Tokyo (JST, UTC+09:00) is no time difference Osaka (JST, UTC+09:00). The gap is currently +0h.
How do I convert Tokyo time to Osaka time?
Add +0h to Tokyo local time. For example, 9:00 AM in Tokyo is 9:00 AM in Osaka.
What time is it in Osaka right now?
Osaka uses JST at UTC+09:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +0h offset from Tokyo.
What is the best time to call Osaka from Tokyo?
Call between 9:00 AM and 5:00 PM JST — that maps to 9:00 AM–5:00 PM JST and keeps both parties inside the working day.
Which is ahead, Tokyo or Osaka?
Tokyo and Osaka are currently on the same clock.
Do Tokyo and Osaka use different time zones?
Tokyo (Japan) uses JST at UTC+09:00, while Osaka (Japan) uses JST at UTC+09:00. They actually share the same IANA zone.
Does daylight saving time affect the Tokyo–Osaka difference?
Neither zone observes daylight saving time, so the +0h offset between Tokyo and Osaka 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.
What is the time difference between Tokyo and Osaka?
Osaka is +0h 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 Osaka in?
Osaka operates on Japan Standard Time (JST), UTC+9. As Japan's second economic center and a manufacturing hub, Osaka shares business hours with Tokyo.
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 Osaka?
Standard business hours in Osaka are 9:00 AM - 6:00 PM JST.
What is the best time to schedule a call between Tokyo and Osaka?
The best overlap for a call is when both cities are in business hours. Tokyo works 9:00 AM - 6:00 PM JST and Osaka works 9:00 AM - 6:00 PM JST (+0h difference). Try scheduling during the overlapping window for maximum convenience.
How do Tokyo and Osaka compare in size?
Tokyo has a population of approximately 14 million (metro: 37.4 million), while Osaka has approximately 2.8 million (metro: 19 million).
What are the major landmarks in Tokyo and Osaka?
Tokyo is known for Tokyo Tower, Shibuya Crossing, Senso-ji Temple. Osaka is famous for Osaka Castle, Dotonbori, Universal Studios Japan.
Do Tokyo and Osaka have stock exchanges?
Yes. Tokyo has the TSE (Tokyo Stock Exchange) and Osaka has the OSE (Osaka Exchange - derivatives). The +0h 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 JST timezone?
Major cities in the JST timezone include Tokyo, Osaka, Yokohama, Nagoya, Sapporo, Kyoto, Kobe, Fukuoka.
What is the UTC offset for JST?
Japan Standard Time (JST) is at UTC+09:00.
What should I know about the JST timezone?
Japan does not observe daylight saving time. Tokyo is the most populous metropolitan area in the world.
When is it midnight in Tokyo, what time is it in Osaka?
When it is 12:00 AM (midnight) in Tokyo (JST), it is +0h later in Osaka (JST).
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