Does it handle Daylight Saving Time?

Yes, the tool automatically adjusts for Daylight Saving Time based on the specific date you select, ensuring accurate conversions year-round.

Can I add multiple cities?

Yes, you can add as many cities as you need to the dashboard to compare times across your entire global network simultaneously.

Ho Chi Minh to GST

-3h

Ho Chi Minh

ICTSOURCE

Vietnam · UTC+07:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

GST

UTC+04:00

HH09

MM00

09:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Ho Chi Minh

GST

12:00 AM

9:00 PM-1

2:00 AM

11:00 PM-1

4:00 AM

1:00 AM

6:00 AM

3:00 AM

8:00 AM

5:00 AM

10:00 AM

7:00 AM

12:00 PM

9:00 AM

2:00 PM

11:00 AM

4:00 PM

1:00 PM

6:00 PM

3:00 PM

8:00 PM

5:00 PM

10:00 PM

7:00 PM

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

ICT and GST on the World Map

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

ICT Zone

→

GST 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

GST – Gulf Standard Time

UTC+04:00

Gulf Standard Time (GST) is used in the UAE, Oman, and other Gulf states, 4 hours ahead of UTC.

Countries in GST

UAEOmanGeorgiaAzerbaijanMauritius

Major Cities in GST

DubaiAbu DhabiMuscatBakuTbilisi

Key Facts about GST

•Dubai uses GST year-round with no daylight saving time.
•GST is 9 hours ahead of EST and 4 hours ahead of GMT.
•The Dubai Financial Market (DFM) operates on GST.

Daylight Saving:No – UTC+04:00 year-round

Learn more about GST 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 →

Everything You Need to Know About Ho Chi Minh and GST Time

Ho Chi Minh runs on Indochina Time (ICT) at UTC+07:00. GST runs on Gulf Standard Time (GST) at UTC+04:00. That puts Ho Chi Minh 3 hours behind GST — a difference of -3h at the current offsets.

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

Ho Chi Minh to GST time conversion table

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

Why people convert Ho Chi Minh to GST time

Scheduling a call from Ho Chi Minh to GST: a 10:00 AM start in Ho Chi Minh lands at 7:00 AM in GST, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Ho Chi Minh and GST are inside the 9-to-5 working day between 12:00 PM and 5:00 PM ICT time (9:00 AM–2:00 PM GST). That is roughly 5 hours of usable overlap.
Watching a live event or market open: Ho Chi Minh viewers need 6:00 AM in GST to catch a 9:00 AM start there, and 3:00 AM if the event is anchored to Ho Chi Minh.

Always state the zone abbreviation, not just the hour. "3:00 PM ICT" is unambiguous; "3 PM" across a -3h gap is not.
Block 12:00 PM–5:00 PM ICT as the recurring meeting window if you work primarily from Ho Chi Minh and need GST 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 GST (Gulf Standard Time)

Gulf Standard Time (GST) is the time zone used in the United Arab Emirates, Oman, and other Gulf states. GST does not observe daylight saving time. Dubai and Abu Dhabi, major international business and tourism hubs, operate on GST.

Best time to call between Ho Chi Minh and GST

Both Ho Chi Minh and GST sit inside the 9 AM – 5 PM working day between 12:00 PM–5:00 PM ICT, which is 9:00 AM–2:00 PM GST. That gives roughly 5 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

Ho Chi Minh and GST share 5 hours of working-hours overlap (12:00 PM–5:00 PM ICT), so scheduling a live meeting is straightforward.

Ho Chi Minh is 3 hours behind GST (ICT UTC+07:00 → GST UTC+04:00). The shared working window is 12:00 PM–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 Ho Chi Minh and GST?

Ho Chi Minh (ICT, UTC+07:00) is 3 hours behind GST (GST, UTC+04:00). The gap is currently -3h.

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

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

What time is it in GST right now?

GST uses GST at UTC+04:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -3h offset from Ho Chi Minh.

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

Call between 12:00 PM and 5:00 PM ICT — that maps to 9:00 AM–2:00 PM GST and keeps both parties inside the working day.

Which is behind, Ho Chi Minh or GST?

Ho Chi Minh is 3 hours behind GST. When it is 12:00 PM in Ho Chi Minh it is 9:00 AM in GST.

Do Ho Chi Minh and GST use different time zones?

Ho Chi Minh (Vietnam) uses ICT at UTC+07:00, while GST uses GST at UTC+04:00. The IANA identifiers are Asia/Ho_Chi_Minh and Asia/Dubai.

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

Neither zone observes daylight saving time, so the -3h offset between Ho Chi Minh and GST 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 GST?

Not normally. The -3h gap only pushes the date over the previous day.

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

GST is -3h 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.