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).

ICT to BDST

-1h

ICT

ICTSOURCE

UTC+07:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

BDST

UTC+06:00

HH11

MM00

11:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

ICT

BDST

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

Comparing Time Zones: ICT and BDST

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

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

ICT to BDST time conversion table

ICT (ICT)	BDST (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 ICT to BDST time

Scheduling a call from ICT to BDST: a 10:00 AM start in ICT lands at 9:00 AM in BDST, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both ICT and BDST 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.
Keeping family and friends in sync: knowing that 8:00 PM in ICT is 7:00 PM in BDST makes it easy to avoid calling at 3 AM.

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 ICT and need BDST 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 ICT and BDST

Both ICT and BDST 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

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

ICT is 1 hour behind BDST (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 ICT and BDST?

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

How do I convert ICT time to BDST time?

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

What time is it in BDST right now?

BDST 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 ICT.

What is the best time to call BDST from ICT?

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, ICT or BDST?

ICT is 1 hour behind BDST. When it is 12:00 PM in ICT it is 11:00 AM in BDST.

Does daylight saving time affect the ICT–BDST difference?

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

Which other cities share ICT's time zone?

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

Which countries use ICT, ICT's zone?

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

Is there a day difference between ICT and BDST?

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

What is the time difference between ICT and BDST?

BDST is -1h from ICT.

What timezone is ICT in?

ICT operates on its local timezone.

What timezone is BDST in?

BDST operates on its local timezone.

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.