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).

Dhaka to JST

+3h

Dhaka

BDSTSOURCE

Bangladesh · UTC+06:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

JST

UTC+09:00

HH03

MM00

15:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Dhaka

JST

12:00 AM

3:00 AM

2:00 AM

5:00 AM

4:00 AM

7:00 AM

6:00 AM

9:00 AM

8:00 AM

11:00 AM

10:00 AM

1:00 PM

12:00 PM

3:00 PM

2:00 PM

5:00 PM

4:00 PM

7:00 PM

6:00 PM

9:00 PM

8:00 PM

11:00 PM

10:00 PM

1:00 AM+1

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

BDST and JST on the World Map

The map below highlights the BDST (Bangladesh Standard Time) and JST (Japan Standard Time) timezone regions across the globe.

BDST Zone

→

JST Zone

Explore all world timezones interactively →

BDST – Bangladesh Standard Time

UTC+06:00

Bangladesh Standard Time (BDST, UTC+06:00) is the time zone for Bangladesh, 6 hours ahead of UTC.

Countries in BDST

Bangladesh

Major Cities in BDST

DhakaChittagongKhulnaRajshahiSylhet

Key Facts about BDST

•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).

Daylight Saving:No – UTC+06:00 year-round

Learn more about BDST on Wikipedia

JST – Japan Standard Time

UTC+09:00

Japan Standard Time (JST) is the time zone for Japan, 9 hours ahead of UTC.

Countries in JST

Japan

Major Cities in JST

TokyoOsakaYokohamaNagoyaSapporoKyotoKobeFukuokaHiroshima

Key Facts about JST

•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.

Daylight Saving:No – UTC+09:00 year-round

Learn more about JST on Wikipedia

About Dhaka

Wikipedia

Dhaka operates on Bangladesh Standard Time (BST), UTC+6. As the world's second-largest garment hub, Dhaka time coordinates global fashion supply chains.

Population:10.3 million

Metro:22.5 million

Business Hours:9:00 AM - 5:00 PM BST

Currency:BDT (৳)

Stock Exchange:DSE (Dhaka Stock Exchange)

Key Landmarks

Lalbagh FortAhsan ManzilNational Parliament HouseStar MosqueLiberation War Museum

Did You Know?

Bangladesh is the world's second-largest garment exporter after China.

Learn more about BDST timezone →

Dhaka vs JST: Offsets, DST and Best Call Times

Dhaka runs on Bangladesh Standard Time (BDST) at UTC+06:00. JST runs on Japan Standard Time (JST) at UTC+09:00. That puts Dhaka 3 hours ahead of JST — a difference of +3h at the current offsets.

In practice, when it is 9:00 AM in Dhaka it is 12:00 PM in JST. Midnight in Dhaka is 3:00 AM in JST. Neither zone observes daylight saving time, so the offset between them stays constant all year.

Dhaka to JST time conversion table

Dhaka (BDST)	JST (JST)	Day
12:00 AM	3:00 AM	same day
6:00 AM	9:00 AM	same day
7:00 AM	10:00 AM	same day
8:00 AM	11:00 AM	same day
9:00 AM	12:00 PM	same day
12:00 PM	3:00 PM	same day
3:00 PM	6:00 PM	same day
5:00 PM	8:00 PM	same day
6:00 PM	9:00 PM	same day
9:00 PM	12:00 AM	next day

Why people convert Dhaka to JST time

Scheduling a call from Dhaka to JST: a 10:00 AM start in Dhaka lands at 1:00 PM in JST, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Dhaka and JST are inside the 9-to-5 working day between 9:00 AM and 2:00 PM BDST time (12:00 PM–5:00 PM JST). That is roughly 5 hours of usable overlap.
Coordinating a Dhaka-based team with JST contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.

Always state the zone abbreviation, not just the hour. "3:00 PM BDST" is unambiguous; "3 PM" across a +3h gap is not.
Block 9:00 AM–2:00 PM BDST as the recurring meeting window if you work primarily from Dhaka and need JST colleagues present.

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.

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 Dhaka and JST

Both Dhaka and JST sit inside the 9 AM – 5 PM working day between 9:00 AM–2:00 PM BDST, which is 12:00 PM–5:00 PM JST. That gives roughly 5 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

Dhaka and JST share 5 hours of working-hours overlap (9:00 AM–2:00 PM BDST), so scheduling a live meeting is straightforward.

Dhaka is 3 hours ahead of JST (BDST UTC+06:00 → JST UTC+09:00). The shared working window is 9:00 AM–2:00 PM BDST. 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:

⏳

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 Dhaka and JST?

Dhaka (BDST, UTC+06:00) is 3 hours ahead of JST (JST, UTC+09:00). The gap is currently +3h.

How do I convert Dhaka time to JST time?

Add +3h to Dhaka local time. For example, 9:00 AM in Dhaka is 12:00 PM in JST.

What time is it in JST right now?

JST 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 +3h offset from Dhaka.

What is the best time to call JST from Dhaka?

Call between 9:00 AM and 2:00 PM BDST — that maps to 12:00 PM–5:00 PM JST and keeps both parties inside the working day.

Which is ahead, Dhaka or JST?

Dhaka is 3 hours ahead of JST. When it is 12:00 PM in Dhaka it is 3:00 PM in JST.

Do Dhaka and JST use different time zones?

Dhaka (Bangladesh) uses BDST at UTC+06:00, while JST uses JST at UTC+09:00. The IANA identifiers are Asia/Dhaka and Asia/Tokyo.

Does daylight saving time affect the Dhaka–JST difference?

Neither zone observes daylight saving time, so the +3h offset between Dhaka and JST is fixed all year.

Which other cities share Dhaka's time zone?

BDST also covers Dhaka, Chittagong, Khulna, Rajshahi, Sylhet.

Which countries use BDST, Dhaka's zone?

BDST is used in Bangladesh.

Is there a day difference between Dhaka and JST?

Not normally. The +3h gap only pushes the date over for late-evening times.

What is the time difference between Dhaka and JST?

JST is +3h from Dhaka.

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 timezone is JST in?

JST operates on its local timezone.

What are the business hours in Dhaka?

Standard business hours in Dhaka are 9:00 AM - 5:00 PM BST.

Which countries use BDST (Bangladesh Standard Time)?

BDST is used in Bangladesh.

Does BDST observe daylight saving time?

No, BDST does not observe daylight saving time and remains at UTC+06:00 year-round.

What are some interesting facts about BDST?

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.