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 PST

-15h

Ho Chi Minh

ICTSOURCE

Vietnam · UTC+07:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

PST

UTC-07:00☀ DST active

HH09

MM00

(previous day)21:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Ho Chi Minh

PST

12:00 AM

10:00 AM-1

2:00 AM

12:00 PM-1

4:00 AM

2:00 PM-1

6:00 AM

4:00 PM-1

8:00 AM

6:00 PM-1

10:00 AM

8:00 PM-1

12:00 PM

10:00 PM-1

2:00 PM

12:00 AM

4:00 PM

2:00 AM

6:00 PM

4:00 AM

8:00 PM

6:00 AM

10:00 PM

8:00 AM

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

ICT and PST on the World Map

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

ICT Zone

→

PST 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

PST – Pacific Standard Time

UTC-08:00

Pacific Standard Time (PST) is the time zone for the US and Canadian Pacific coast, 8 hours behind UTC.

Countries in PST

United States (Pacific)Canada (British Columbia)Mexico (Baja California)

Major Cities in PST

Los AngelesSan FranciscoSeattleVancouverSan DiegoPortlandLas VegasSacramentoSan JoseTijuana

Key Facts about PST

•Silicon Valley and the world's biggest tech companies operate on Pacific Time.
•The Hollywood film industry runs on PST/PDT.
•PST is 3 hours behind EST, creating a significant business hours gap.
•Vancouver, Canada's third-largest city, uses PST.

Daylight Saving:Yes – switches to PDT

Learn more about PST 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 -15h Gap: Ho Chi Minh vs PST

Ho Chi Minh runs on Indochina Time (ICT) at UTC+07:00. PST runs on Pacific Standard Time (PST) at UTC-08:00. That puts Ho Chi Minh 15 hours behind PST — a difference of -15h at the current offsets.

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

Ho Chi Minh to PST time conversion table

Ho Chi Minh (ICT)	PST (PST)	Day
12:00 AM	9:00 AM	previous day
6:00 AM	3:00 PM	previous day
7:00 AM	4:00 PM	previous day
8:00 AM	5:00 PM	previous day
9:00 AM	6:00 PM	previous day
12:00 PM	9:00 PM	previous day
3:00 PM	12:00 AM	same day
5:00 PM	2:00 AM	same day
6:00 PM	3:00 AM	same day
9:00 PM	6:00 AM	same day

Why people convert Ho Chi Minh to PST time

Scheduling a call from Ho Chi Minh to PST: a 10:00 AM start in Ho Chi Minh lands at 7:00 PM in PST the previous day, so you can confirm the slot without doing the arithmetic yourself.
Handling a -15h gap: Ho Chi Minh and PST 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 PST is 6:00 PM in Ho Chi Minh.
Keeping family and friends in sync: knowing that 8:00 PM in Ho Chi Minh is 5:00 AM in PST 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 -15h gap is not.
With a -15h 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 PST 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 PST (Pacific Standard Time)

Pacific Standard Time (PST) covers the west coast of North America, including tech hubs like San Francisco and Seattle, and entertainment capital Los Angeles. The Pacific Time Zone is home to Silicon Valley and the world's largest technology companies. During summer, clocks advance to Pacific Daylight Time (PDT, UTC-07:00). PST is also observed in Baja California, Mexico.

Best time to call between Ho Chi Minh and PST

With a -15h offset there is no overlap inside a normal 9 AM – 5 PM day. PST opens at 9:00 AM PST, which is 6:00 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 PST have no shared working hours because of the -15h gap. Teams need to alternate early starts or rely on asynchronous handovers.

Ho Chi Minh is 15 hours behind PST (ICT UTC+07:00 → PST UTC-08:00). 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

PST

☀ Currently in DST

Standard: UTC-08:00 · DST: UTC-07:00

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 PST?

Ho Chi Minh (ICT, UTC+07:00) is 15 hours behind PST (PST, UTC-08:00). The gap is currently -15h.

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

Add -15h to Ho Chi Minh local time. For example, 9:00 AM in Ho Chi Minh is 6:00 PM in PST (previous day).

What time is it in PST right now?

PST uses PST at UTC-08:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -15h offset from Ho Chi Minh.

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

There is no shared working-hours window because of the -15h gap. The closest option is 1:00 PM in Ho Chi Minh, which is 10:00 PM in PST.

Which is behind, Ho Chi Minh or PST?

Ho Chi Minh is 15 hours behind PST. When it is 12:00 PM in Ho Chi Minh it is 9:00 PM in PST.

Do Ho Chi Minh and PST use different time zones?

Ho Chi Minh (Vietnam) uses ICT at UTC+07:00, while PST uses PST at UTC-08:00. The IANA identifiers are Asia/Ho_Chi_Minh and America/Los_Angeles.

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

Neither zone observes daylight saving time, so the -15h offset between Ho Chi Minh and PST 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 PST?

Sometimes. The -15h gap is large enough that 8:00 PM or later in Ho Chi Minh already falls on the in PST.

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

PST is -15h 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.

What timezone is PST in?

PST operates on its local timezone.

What are the business hours in Ho Chi Minh?

Standard business hours in Ho Chi Minh are 8:00 AM - 5:00 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 PST timezone?

Major cities in the PST timezone include Los Angeles, San Francisco, Seattle, Vancouver, San Diego, Portland, Las Vegas, Sacramento.

What is the UTC offset for PST?

Pacific Standard Time (PST) is at UTC-08:00. During daylight saving time, it shifts to PDT.

What should I know about the PST timezone?

Silicon Valley and the world's biggest tech companies operate on Pacific Time. The Hollywood film industry runs on PST/PDT.

When is it midnight in Ho Chi Minh, what time is it in PST?

When it is 12:00 AM (midnight) in Ho Chi Minh (ICT), it is -15h later in PST (PST).

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