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).

Ho Chi Minh to NST

-10h 30m

Ho Chi Minh

ICTSOURCE

Vietnam · UTC+07:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

NST

UTC-02:30☀ DST active

HH01

MM30

01:30 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Ho Chi Minh

NST

12:00 AM

2:30 PM-1

2:00 AM

4:30 PM-1

4:00 AM

6:30 PM-1

6:00 AM

8:30 PM-1

8:00 AM

10:30 PM-1

10:00 AM

12:30 AM

12:00 PM

2:30 AM

2:00 PM

4:30 AM

4:00 PM

6:30 AM

6:00 PM

8:30 AM

8:00 PM

10:30 AM

10:00 PM

12:30 PM

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

ICT and NST on the World Map

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

ICT Zone

→

NST 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

NST – Newfoundland Standard Time

UTC-03:30

Newfoundland Standard Time (NST) is a unique half-hour offset time zone in Canada, 3.5 hours behind UTC.

Countries in NST

Canada (Newfoundland)

Major Cities in NST

St. John'sCorner BrookMount Pearl

Key Facts about NST

•NST is one of only a few half-hour offset time zones in the world.
•Newfoundland joined Canada in 1949 and kept its unique time zone.
•St. John's is the easternmost city in North America.

Daylight Saving:Yes – switches to NDT

Learn more about NST 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 →

Time Conversion Guide: Ho Chi Minh to NST

Ho Chi Minh runs on Indochina Time (ICT) at UTC+07:00. NST runs on Newfoundland Standard Time (NST) at UTC-03:30. That puts Ho Chi Minh 10 hours 30 minutes behind NST — a difference of -10h 30m at the current offsets.

In practice, when it is 9:00 AM in Ho Chi Minh it is 10:30 PM in NST on the previous day. Midnight in Ho Chi Minh is 1:30 PM in NST. Neither zone observes daylight saving time, so the offset between them stays constant all year.

Ho Chi Minh to NST time conversion table

Ho Chi Minh (ICT)	NST (NST)	Day
12:00 AM	1:30 PM	previous day
6:00 AM	7:30 PM	previous day
7:00 AM	8:30 PM	previous day
8:00 AM	9:30 PM	previous day
9:00 AM	10:30 PM	previous day
12:00 PM	1:30 AM	same day
3:00 PM	4:30 AM	same day
5:00 PM	6:30 AM	same day
6:00 PM	7:30 AM	same day
9:00 PM	10:30 AM	same day

Why people convert Ho Chi Minh to NST time

Scheduling a call from Ho Chi Minh to NST: a 10:00 AM start in Ho Chi Minh lands at 11:30 PM in NST the previous day, so you can confirm the slot without doing the arithmetic yourself.
Handling a -10h 30m gap: Ho Chi Minh and NST have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in NST is 10:30 PM in Ho Chi Minh.
Keeping family and friends in sync: knowing that 8:00 PM in Ho Chi Minh is 9:30 AM in NST 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 -10h 30m gap is not.
With a -10h 30m gap there is no shared 9-to-5 window, so alternate the early start: one week Ho Chi Minh takes the early slot, the next week NST does.

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 NST (Newfoundland Standard Time)

Newfoundland Standard Time (NST) is one of the few half-hour offset time zones in the world. It covers the island of Newfoundland in Canada and is 30 minutes ahead of Atlantic Standard Time. This unique offset exists because Newfoundland was an independent country until 1949.

Best time to call between Ho Chi Minh and NST

With a -10h 30m offset there is no overlap inside a normal 9 AM – 5 PM day. NST opens at 9:00 AM NST, which is 10:30 PM in Ho Chi Minh, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

Ho Chi Minh and NST have no shared working hours because of the -10h 30m gap. Teams need to alternate early starts or rely on asynchronous handovers.

Ho Chi Minh is 10 hours 30 minutes behind NST (ICT UTC+07:00 → NST UTC-03:30). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

Ho Chi Minh

Does not observe DST

NST

☀ Currently in DST

Standard: UTC-03:30 · DST: UTC-02:30

Clocks fall back on Sun, Nov 1, 2026

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 Ho Chi Minh and NST?

Ho Chi Minh (ICT, UTC+07:00) is 10 hours 30 minutes behind NST (NST, UTC-03:30). The gap is currently -10h 30m.

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

Add -10h 30m to Ho Chi Minh local time. For example, 9:00 AM in Ho Chi Minh is 10:30 PM in NST (previous day).

What time is it in NST right now?

NST uses NST at UTC-03:30. Use the live converter at the top of this page — it updates in real time and already accounts for the -10h 30m offset from Ho Chi Minh.

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

There is no shared working-hours window because of the -10h 30m gap. The closest option is 1:00 PM in Ho Chi Minh, which is 2:30 AM in NST.

Which is behind, Ho Chi Minh or NST?

Ho Chi Minh is 10 hours 30 minutes behind NST. When it is 12:00 PM in Ho Chi Minh it is 1:30 AM in NST.

Do Ho Chi Minh and NST use different time zones?

Ho Chi Minh (Vietnam) uses ICT at UTC+07:00, while NST uses NST at UTC-03:30. The IANA identifiers are Asia/Ho_Chi_Minh and America/St_Johns.

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

Neither zone observes daylight saving time, so the -10h 30m offset between Ho Chi Minh and NST is fixed all year.

Which other cities share Ho Chi Minh's time zone?

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

Which countries use ICT, Ho Chi Minh's zone?

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

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

Not normally. The -10h 30m gap only pushes the date over the previous day.

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

NST is -10h 30m from Ho Chi Minh.

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.