Osaka to Dhaka
-3hOsaka
JSTSOURCEDhaka
BDSTGreen rows indicate typical business hours (9 AM - 5 PM)
JST and BDST on the World Map
The map below highlights the JST (Japan Standard Time) and BDST (Bangladesh 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.
BDST – Bangladesh Standard Time
UTC+06:00Bangladesh Standard Time (BDST, UTC+06:00) is the time zone for Bangladesh, 6 hours ahead of UTC.
- •Bangladesh uses a single time zone, UTC+06:00, across the entire country.
- •Bangladesh does not observe daylight saving time, so the offset is fixed all year.
- •Dhaka is one of the most densely populated cities globally.
- •BDST is written here to distinguish it from British Summer Time (BST).
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.
About Dhaka
WikipediaDhaka operates on Bangladesh Standard Time (BST), UTC+6. As the world's second-largest garment hub, Dhaka time coordinates global fashion supply chains.
Bangladesh is the world's second-largest garment exporter after China.
Time Conversion Guide: Osaka to Dhaka
Osaka runs on Japan Standard Time (JST) at UTC+09:00. Dhaka runs on Bangladesh Standard Time (BDST) at UTC+06:00. That puts Osaka 3 hours behind Dhaka — a difference of -3h at the current offsets.
In practice, when it is 9:00 AM in Osaka it is 6:00 AM in Dhaka. Midnight in Osaka is 9:00 PM in Dhaka. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Osaka to Dhaka time conversion table
| Osaka (JST) | Dhaka (BDST) | Day |
|---|---|---|
| 12:00 AM | 9:00 PM | previous day |
| 6:00 AM | 3:00 AM | same day |
| 7:00 AM | 4:00 AM | same day |
| 8:00 AM | 5:00 AM | same day |
| 9:00 AM | 6:00 AM | same day |
| 12:00 PM | 9:00 AM | same day |
| 3:00 PM | 12:00 PM | same day |
| 5:00 PM | 2:00 PM | same day |
| 6:00 PM | 3:00 PM | same day |
| 9:00 PM | 6:00 PM | same day |
Why people convert Osaka to Dhaka time
- Scheduling a call from Osaka to Dhaka: a 10:00 AM start in Osaka lands at 7:00 AM in Dhaka, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Osaka and Dhaka are inside the 9-to-5 working day between 12:00 PM and 5:00 PM JST time (9:00 AM–2:00 PM BDST). That is roughly 5 hours of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in Osaka is 5:00 PM in Dhaka makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM JST" is unambiguous; "3 PM" across a -3h gap is not.
- Block 12:00 PM–5:00 PM JST as the recurring meeting window if you work primarily from Osaka and need Dhaka 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 BDST (Bangladesh Standard Time)
Bangladesh Standard Time (BDST) is the single time zone used across Bangladesh, fixed at UTC+06:00 all year. Bangladesh has not observed daylight saving time since a short-lived experiment in 2009, so the gap between Bangladesh and every other zone is constant. Dhaka, the capital, is one of the most densely populated cities in the world. Because the country sits close to the middle of the UTC+06:00 band, solar noon is near 12:00 for most of the year. BDST is listed separately from British Summer Time, which shares the BST abbreviation but is UTC+01:00.
Best time to call between Osaka and Dhaka
Both Osaka and Dhaka sit inside the 9 AM – 5 PM working day between 12:00 PM–5:00 PM JST, which is 9:00 AM–2:00 PM BDST. That gives roughly 5 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Osaka and Dhaka share 5 hours of working-hours overlap (12:00 PM–5:00 PM JST), so scheduling a live meeting is straightforward.
Osaka is 3 hours behind Dhaka (JST UTC+09:00 → BDST UTC+06:00). The shared working window is 12:00 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 Osaka and Dhaka?
Osaka (JST, UTC+09:00) is 3 hours behind Dhaka (BDST, UTC+06:00). The gap is currently -3h.
How do I convert Osaka time to Dhaka time?
Add -3h to Osaka local time. For example, 9:00 AM in Osaka is 6:00 AM in Dhaka.
What time is it in Dhaka right now?
Dhaka uses BDST at UTC+06:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -3h offset from Osaka.
What is the best time to call Dhaka from Osaka?
Call between 12:00 PM and 5:00 PM JST — that maps to 9:00 AM–2:00 PM BDST and keeps both parties inside the working day.
Which is behind, Osaka or Dhaka?
Osaka is 3 hours behind Dhaka. When it is 12:00 PM in Osaka it is 9:00 AM in Dhaka.
Do Osaka and Dhaka use different time zones?
Osaka (Japan) uses JST at UTC+09:00, while Dhaka (Bangladesh) uses BDST at UTC+06:00. The IANA identifiers are Asia/Tokyo and Asia/Dhaka.
Does daylight saving time affect the Osaka–Dhaka difference?
Neither zone observes daylight saving time, so the -3h offset between Osaka and Dhaka is fixed all year.
Which other cities share Osaka's time zone?
JST also covers Tokyo, Osaka, Yokohama, Nagoya, Sapporo, Kyoto, Kobe, Fukuoka and 1 more.
Which countries use JST, Osaka's zone?
JST is used in Japan.
Is there a day difference between Osaka and Dhaka?
Not normally. The -3h gap only pushes the date over the previous day.
What is the time difference between Osaka and Dhaka?
Dhaka is -3h from Osaka.
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 timezone is Dhaka in?
Dhaka operates on Bangladesh Standard Time (BST), UTC+6. As the world's second-largest garment hub, Dhaka time coordinates global fashion supply chains.
What are the business hours in Osaka?
Standard business hours in Osaka are 9:00 AM - 6:00 PM JST.
What are the business hours in Dhaka?
Standard business hours in Dhaka are 9:00 AM - 5:00 PM BST.
What is the best time to schedule a call between Osaka and Dhaka?
The best overlap for a call is when both cities are in business hours. Osaka works 9:00 AM - 6:00 PM JST and Dhaka works 9:00 AM - 5:00 PM BST (-3h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Osaka and Dhaka?
Osaka uses JPY (¥) while Dhaka uses BDT (৳). Check current exchange rates when planning travel or business between these cities.
How do Osaka and Dhaka compare in size?
Osaka has a population of approximately 2.8 million (metro: 19 million), while Dhaka has approximately 10.3 million (metro: 22.5 million).
What are the major landmarks in Osaka and Dhaka?
Osaka is known for Osaka Castle, Dotonbori, Universal Studios Japan. Dhaka is famous for Lalbagh Fort, Ahsan Manzil, National Parliament House.
Do Osaka and Dhaka have stock exchanges?
Yes. Osaka has the OSE (Osaka Exchange - derivatives) and Dhaka has the DSE (Dhaka Stock Exchange). The -3h 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 BDST timezone?
Major cities in the BDST timezone include Dhaka, Chittagong, Khulna, Rajshahi, Sylhet.
What is the UTC offset for BDST?
Bangladesh Standard Time (BDST) is at UTC+06:00.
What should I know about the BDST timezone?
Bangladesh uses a single time zone, UTC+06:00, across the entire country. Bangladesh does not observe daylight saving time, so the offset is fixed all year.
When is it midnight in Osaka, what time is it in Dhaka?
When it is 12:00 AM (midnight) in Osaka (JST), it is -3h later in Dhaka (BDST).
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