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).

Bangkok to Bangladesh

-1h

Bangkok

ICTSOURCE

Thailand · UTC+07:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Bangladesh

BDST

UTC+06:00

HH11

MM00

11:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Bangkok

Bangladesh

12:00 AM

11:00 PM-1

2:00 AM

1:00 AM

4:00 AM

3:00 AM

6:00 AM

5:00 AM

8:00 AM

7:00 AM

10:00 AM

9:00 AM

12:00 PM

11:00 AM

2:00 PM

1:00 PM

4:00 PM

3:00 PM

6:00 PM

5:00 PM

8:00 PM

7:00 PM

10:00 PM

9:00 PM

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

ICT and BDST on the World Map

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

ICT Zone

→

BDST Zone

Explore all world timezones interactively →

ICT – Indochina Time

UTC+07:00

Indochina Time (ICT) is the time zone for Vietnam, Thailand, Laos, and Cambodia, 7 hours ahead of UTC.

Countries in ICT

ThailandVietnamCambodiaLaosIndonesia (WIB)

Major Cities in ICT

BangkokHo Chi Minh CityHanoiJakartaPhnom PenhVientiane

Key Facts about ICT

•Bangkok is one of the most visited cities in the world.
•ICT is 12 hours ahead of EST.
•Thailand, Vietnam, and Cambodia all share ICT.

Daylight Saving:No – UTC+07:00 year-round

Learn more about ICT on Wikipedia

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

About Bangkok

Wikipedia

Bangkok operates on Indochina Time (ICT), UTC+7. As Southeast Asia's largest economy hub, Bangkok bridges East Asian and South Asian business hours.

Population:8.3 million

Metro:14.6 million

Business Hours:8:30 AM - 5:30 PM ICT

Currency:THB (฿)

Stock Exchange:SET (Stock Exchange of Thailand)

Key Landmarks

Grand PalaceWat ArunWat PhoChatuchak MarketKhao San Road

Did You Know?

Bangkok is one of the world's most visited cities, with over 22 million visitors annually.

Learn more about ICT timezone →

Understanding the -1h Gap: Bangkok vs Bangladesh

Bangkok runs on Indochina Time (ICT) at UTC+07:00. Bangladesh runs on Bangladesh Standard Time (BDST) at UTC+06:00. That puts Bangkok 1 hour behind Bangladesh — a difference of -1h at the current offsets.

In practice, when it is 9:00 AM in Bangkok it is 8:00 AM in Bangladesh. Midnight in Bangkok is 11:00 PM in Bangladesh. Neither zone observes daylight saving time, so the offset between them stays constant all year.

Bangkok to Bangladesh time conversion table

Bangkok (ICT)	Bangladesh (BDST)	Day
12:00 AM	11:00 PM	previous day
6:00 AM	5:00 AM	same day
7:00 AM	6:00 AM	same day
8:00 AM	7:00 AM	same day
9:00 AM	8:00 AM	same day
12:00 PM	11:00 AM	same day
3:00 PM	2:00 PM	same day
5:00 PM	4:00 PM	same day
6:00 PM	5:00 PM	same day
9:00 PM	8:00 PM	same day

Why people convert Bangkok to Bangladesh time

Scheduling a call from Bangkok to Bangladesh: a 10:00 AM start in Bangkok lands at 9:00 AM in Bangladesh, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Bangkok and Bangladesh are inside the 9-to-5 working day between 10:00 AM and 5:00 PM ICT time (9:00 AM–4:00 PM BDST). That is roughly 7 hours of usable overlap.
Coordinating a Bangkok-based team with Bangladesh 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 ICT" is unambiguous; "3 PM" across a -1h gap is not.
Block 10:00 AM–5:00 PM ICT as the recurring meeting window if you work primarily from Bangkok and need Bangladesh colleagues present.

About ICT (Indochina Time)

Indochina Time (ICT) is used across Southeast Asia including Vietnam, Thailand, Laos, and Cambodia. Indonesia (Western time, WIB) also uses UTC+07:00. ICT does not observe daylight saving time.

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 Bangkok and Bangladesh

Both Bangkok and Bangladesh sit inside the 9 AM – 5 PM working day between 10:00 AM–5:00 PM ICT, which is 9:00 AM–4:00 PM BDST. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

Bangkok and Bangladesh share 7 hours of working-hours overlap (10:00 AM–5:00 PM ICT), so scheduling a live meeting is straightforward.

Bangkok is 1 hour behind Bangladesh (ICT UTC+07:00 → BDST UTC+06:00). The shared working window is 10:00 AM–5:00 PM ICT. 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 Bangkok and Bangladesh?

Bangkok (ICT, UTC+07:00) is 1 hour behind Bangladesh (BDST, UTC+06:00). The gap is currently -1h.

How do I convert Bangkok time to Bangladesh time?

Add -1h to Bangkok local time. For example, 9:00 AM in Bangkok is 8:00 AM in Bangladesh.

What time is it in Bangladesh right now?

Bangladesh 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 -1h offset from Bangkok.

What is the best time to call Bangladesh from Bangkok?

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

Which is behind, Bangkok or Bangladesh?

Bangkok is 1 hour behind Bangladesh. When it is 12:00 PM in Bangkok it is 11:00 AM in Bangladesh.

Do Bangkok and Bangladesh use different time zones?

Bangkok (Thailand) uses ICT at UTC+07:00, while Bangladesh (Bangladesh) uses BDST at UTC+06:00. The IANA identifiers are Asia/Bangkok and Asia/Dhaka.

Does daylight saving time affect the Bangkok–Bangladesh difference?

Neither zone observes daylight saving time, so the -1h offset between Bangkok and Bangladesh is fixed all year.

Which other cities share Bangkok's time zone?

ICT also covers Bangkok, Ho Chi Minh City, Hanoi, Jakarta, Phnom Penh, Vientiane.

Which countries use ICT, Bangkok's zone?

ICT is used in Thailand, Vietnam, Cambodia, Laos, Indonesia (WIB).

Is there a day difference between Bangkok and Bangladesh?

Not normally. The -1h gap only pushes the date over the previous day.

What is the time difference between Bangkok and Bangladesh?

Bangladesh is -1h from Bangkok.

What timezone is Bangkok in?

Bangkok operates on Indochina Time (ICT), UTC+7. As Southeast Asia's largest economy hub, Bangkok bridges East Asian and South Asian business hours.

What timezone is Bangladesh in?

Bangladesh operates on its local timezone.

What are the business hours in Bangkok?

Standard business hours in Bangkok are 8:30 AM - 5:30 PM ICT.

Which countries use ICT (Indochina Time)?

ICT is used in Thailand, Vietnam, Cambodia, Laos, Indonesia (WIB).

Does ICT observe daylight saving time?

No, ICT does not observe daylight saving time and remains at UTC+07:00 year-round.

What are some interesting facts about ICT?

Bangkok is one of the most visited cities in the world. ICT is 12 hours ahead of EST.

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.