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).

BST to Ho Chi Minh

+6h

BST

BSTSOURCE

UTC+01:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Ho Chi Minh

ICT

Vietnam · UTC+07:00

HH06

MM00

18:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

BST

Ho Chi Minh

12:00 AM

6:00 AM

2:00 AM

8:00 AM

4:00 AM

10:00 AM

6:00 AM

12:00 PM

8:00 AM

2:00 PM

10:00 AM

4:00 PM

12:00 PM

6:00 PM

2:00 PM

8:00 PM

4:00 PM

10:00 PM

6:00 PM

12:00 AM+1

8:00 PM

2:00 AM+1

10:00 PM

4:00 AM+1

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

BST and ICT on the World Map

The map below highlights the BST (British Summer Time) and ICT (Indochina Time) timezone regions across the globe.

BST Zone

→

ICT Zone

Explore all world timezones interactively →

BST – British Summer Time

UTC+01:00

British Summer Time (BST, UTC+01:00) is the daylight saving period in the United Kingdom, running from late March to late October.

Countries in BST

United Kingdom

Major Cities in BST

LondonBirminghamManchesterGlasgowEdinburghCardiffBelfastLiverpoolBristolLeeds

Key Facts about BST

•BST runs from the last Sunday in March to the last Sunday in October.
•BST is exactly one hour ahead of GMT, the UK's standard time.
•During BST, London is 4 hours ahead of New York while the US is on Eastern Daylight Time.
•The Isle of Man and the Channel Islands also observe BST.

Daylight Saving:Yes – switches to BST

Learn more about BST on Wikipedia

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

About Ho Chi Minh

Wikipedia

Ho Chi Minh City operates on Indochina Time (ICT), UTC+7. As Vietnam's economic powerhouse and a manufacturing hub, Saigon drives Southeast Asian trade.

Population:9 million

Metro:13 million

Business Hours:8:00 AM - 5:00 PM ICT

Currency:VND (₫)

Stock Exchange:HOSE (Ho Chi Minh Stock Exchange)

Key Landmarks

Notre-Dame CathedralWar Remnants MuseumBen Thanh MarketIndependence PalaceCu Chi Tunnels

Did You Know?

The city has over 5 million motorbikes, outnumbering cars significantly.

Learn more about ICT timezone →

Understanding the +6h Gap: BST vs Ho Chi Minh

BST runs on British Summer Time (BST) at UTC+01:00. Ho Chi Minh runs on Indochina Time (ICT) at UTC+07:00. That puts BST 6 hours ahead of Ho Chi Minh — a difference of +6h at the current offsets.

In practice, when it is 9:00 AM in BST it is 3:00 PM in Ho Chi Minh. Midnight in BST is 6:00 AM in Ho Chi Minh. Neither zone observes daylight saving time, so the offset between them stays constant all year.

BST to Ho Chi Minh time conversion table

BST (BST)	Ho Chi Minh (ICT)	Day
12:00 AM	6:00 AM	same day
6:00 AM	12:00 PM	same day
7:00 AM	1:00 PM	same day
8:00 AM	2:00 PM	same day
9:00 AM	3:00 PM	same day
12:00 PM	6:00 PM	same day
3:00 PM	9:00 PM	same day
5:00 PM	11:00 PM	same day
6:00 PM	12:00 AM	next day
9:00 PM	3:00 AM	next day

Why people convert BST to Ho Chi Minh time

Scheduling a call from BST to Ho Chi Minh: a 10:00 AM start in BST lands at 4:00 PM in Ho Chi Minh, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both BST and Ho Chi Minh are inside the 9-to-5 working day between 9:00 AM and 11:00 AM BST time (3:00 PM–5:00 PM ICT). That is roughly 2 hours of usable overlap.
Watching a live event or market open: BST viewers need 3:00 PM in Ho Chi Minh to catch a 9:00 AM start there, and 6:00 PM if the event is anchored to BST.

Always state the zone abbreviation, not just the hour. "3:00 PM BST" is unambiguous; "3 PM" across a +6h gap is not.
Block 9:00 AM–11:00 AM BST as the recurring meeting window if you work primarily from BST and need Ho Chi Minh colleagues present.

About BST (British Summer Time)

British Summer Time (BST) is the daylight saving period in the United Kingdom, when clocks move one hour forward from Greenwich Mean Time (GMT, UTC+00:00) to UTC+01:00. It runs from the last Sunday in March to the last Sunday in October. England, Scotland, Wales and Northern Ireland all follow it, along with the Isle of Man and the Channel Islands of Jersey and Guernsey. During BST, London is one hour ahead of UTC, four hours ahead of New York on Eastern Daylight Time, and five hours ahead of New York once the United States returns to Eastern Standard Time in November. BST is also used to abbreviate Bangladesh Standard Time (UTC+06:00), which is listed separately on this site.

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.

Best time to call between BST and Ho Chi Minh

Both BST and Ho Chi Minh sit inside the 9 AM – 5 PM working day between 9:00 AM–11:00 AM BST, which is 3:00 PM–5:00 PM ICT. That gives roughly 2 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

BST and Ho Chi Minh overlap for about 2 hours during the working day — enough for meetings if you avoid the edges of the window.

BST is 6 hours ahead of Ho Chi Minh (BST UTC+01:00 → ICT UTC+07:00). The shared working window is 9:00 AM–11:00 AM BST. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

BST

☀ Currently in DST

Standard: UTC+00:00 · DST: UTC+01:00

Clocks fall back on Sun, Oct 25, 2026

Ho Chi Minh

Does not observe DST

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 BST and Ho Chi Minh?

BST (BST, UTC+01:00) is 6 hours ahead of Ho Chi Minh (ICT, UTC+07:00). The gap is currently +6h.

How do I convert BST time to Ho Chi Minh time?

Add +6h to BST local time. For example, 9:00 AM in BST is 3:00 PM in Ho Chi Minh.

What time is it in Ho Chi Minh right now?

Ho Chi Minh uses ICT at UTC+07:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +6h offset from BST.

What is the best time to call Ho Chi Minh from BST?

Call between 9:00 AM and 11:00 AM BST — that maps to 3:00 PM–5:00 PM ICT and keeps both parties inside the working day.

Which is ahead, BST or Ho Chi Minh?

BST is 6 hours ahead of Ho Chi Minh. When it is 12:00 PM in BST it is 6:00 PM in Ho Chi Minh.

Do BST and Ho Chi Minh use different time zones?

BST uses BST at UTC+01:00, while Ho Chi Minh (Vietnam) uses ICT at UTC+07:00. The IANA identifiers are Europe/London and Asia/Ho_Chi_Minh.

Does daylight saving time affect the BST–Ho Chi Minh difference?

Neither zone observes daylight saving time, so the +6h offset between BST and Ho Chi Minh is fixed all year.

Which other cities share BST's time zone?

BST also covers London, Birmingham, Manchester, Glasgow, Edinburgh, Cardiff, Belfast, Liverpool and 2 more.

Which countries use BST, BST's zone?

BST is used in United Kingdom.

Is there a day difference between BST and Ho Chi Minh?

Not normally. The +6h gap only pushes the date over for late-evening times.

What is the time difference between BST and Ho Chi Minh?

Ho Chi Minh is +6h from BST.

What timezone is BST in?

BST operates on its local timezone.

What timezone is Ho Chi Minh in?

Ho Chi Minh City operates on Indochina Time (ICT), UTC+7. As Vietnam's economic powerhouse and a manufacturing hub, Saigon drives Southeast Asian trade.