Singapore to Vietnam
-1hSingapore
SGTSOURCEVietnam
ICTGreen rows indicate typical business hours (9 AM - 5 PM)
SGT and ICT on the World Map
The map below highlights the SGT (Singapore Standard Time) and ICT (Indochina Time) timezone regions across the globe.
SGT – Singapore Standard Time
UTC+08:00Singapore Standard Time (SGT) is the time zone for Singapore, 8 hours ahead of UTC.
- •Singapore uses UTC+08:00 despite being at about 104°E longitude (closer to UTC+07:00).
- •Singapore does not observe daylight saving time.
- •The Singapore Exchange (SGX) operates on SGT.
ICT – Indochina Time
UTC+07:00Indochina Time (ICT) is the time zone for Vietnam, Thailand, Laos, and Cambodia, 7 hours ahead of UTC.
- •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.
About Singapore
WikipediaSingapore Standard Time (SGT) is 8 hours ahead of GMT. As Asia's leading financial hub, Singapore bridges business hours between Europe and Australia.
The city-state has the world's highest percentage of millionaires, with 1 in 6 households.
Singapore vs Vietnam: Offsets, DST and Best Call Times
Singapore runs on Singapore Standard Time (SGT) at UTC+08:00. Vietnam runs on Indochina Time (ICT) at UTC+07:00. That puts Singapore 1 hour behind Vietnam — a difference of -1h at the current offsets.
In practice, when it is 9:00 AM in Singapore it is 8:00 AM in Vietnam. Midnight in Singapore is 11:00 PM in Vietnam. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Singapore to Vietnam time conversion table
| Singapore (SGT) | Vietnam (ICT) | 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 Singapore to Vietnam time
- Scheduling a call from Singapore to Vietnam: a 10:00 AM start in Singapore lands at 9:00 AM in Vietnam, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Singapore and Vietnam are inside the 9-to-5 working day between 10:00 AM and 5:00 PM SGT time (9:00 AM–4:00 PM ICT). That is roughly 7 hours of usable overlap.
- Coordinating a Singapore-based team with Vietnam contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.
- Always state the zone abbreviation, not just the hour. "3:00 PM SGT" is unambiguous; "3 PM" across a -1h gap is not.
- Block 10:00 AM–5:00 PM SGT as the recurring meeting window if you work primarily from Singapore and need Vietnam colleagues present.
About SGT (Singapore Standard Time)
Singapore Standard Time (SGT) is used in Singapore year-round. Singapore does not observe daylight saving time. Despite being geographically close to the UTC+07:00 zone, Singapore uses UTC+08:00 to align with major trading partners like China, Hong Kong, and Malaysia. Singapore is a major global financial hub.
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 Singapore and Vietnam
Both Singapore and Vietnam sit inside the 9 AM – 5 PM working day between 10:00 AM–5:00 PM SGT, which is 9:00 AM–4:00 PM ICT. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Singapore and Vietnam share 7 hours of working-hours overlap (10:00 AM–5:00 PM SGT), so scheduling a live meeting is straightforward.
Singapore is 1 hour behind Vietnam (SGT UTC+08:00 → ICT UTC+07:00). The shared working window is 10:00 AM–5:00 PM SGT. 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:
Frequently Asked Questions
What is the time difference between Singapore and Vietnam?
Singapore (SGT, UTC+08:00) is 1 hour behind Vietnam (ICT, UTC+07:00). The gap is currently -1h.
How do I convert Singapore time to Vietnam time?
Add -1h to Singapore local time. For example, 9:00 AM in Singapore is 8:00 AM in Vietnam.
What time is it in Vietnam right now?
Vietnam 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 -1h offset from Singapore.
What is the best time to call Vietnam from Singapore?
Call between 10:00 AM and 5:00 PM SGT — that maps to 9:00 AM–4:00 PM ICT and keeps both parties inside the working day.
Which is behind, Singapore or Vietnam?
Singapore is 1 hour behind Vietnam. When it is 12:00 PM in Singapore it is 11:00 AM in Vietnam.
Do Singapore and Vietnam use different time zones?
Singapore (Singapore) uses SGT at UTC+08:00, while Vietnam (Vietnam) uses ICT at UTC+07:00. The IANA identifiers are Asia/Singapore and Asia/Ho_Chi_Minh.
Does daylight saving time affect the Singapore–Vietnam difference?
Neither zone observes daylight saving time, so the -1h offset between Singapore and Vietnam is fixed all year.
Which other cities share Singapore's time zone?
SGT also covers Singapore.
Which countries use SGT, Singapore's zone?
SGT is used in Singapore.
Is there a day difference between Singapore and Vietnam?
Not normally. The -1h gap only pushes the date over the previous day.
What is the time difference between Singapore and Vietnam?
Vietnam is -1h from Singapore.
What timezone is Singapore in?
Singapore Standard Time (SGT) is 8 hours ahead of GMT. As Asia's leading financial hub, Singapore bridges business hours between Europe and Australia.
What timezone is Vietnam in?
Vietnam operates on its local timezone.
What are the business hours in Singapore?
Standard business hours in Singapore are 9:00 AM - 6:00 PM SGT.
Which countries use SGT (Singapore Standard Time)?
SGT is used in Singapore.
Does SGT observe daylight saving time?
No, SGT does not observe daylight saving time and remains at UTC+08:00 year-round.
What are some interesting facts about SGT?
Singapore uses UTC+08:00 despite being at about 104°E longitude (closer to UTC+07:00). Singapore does not observe daylight saving time.
Which cities are in the ICT timezone?
Major cities in the ICT timezone include Bangkok, Ho Chi Minh City, Hanoi, Jakarta, Phnom Penh, Vientiane.
What is the UTC offset for ICT?
Indochina Time (ICT) is at UTC+07:00.
What should I know about the ICT timezone?
Bangkok is one of the most visited cities in the world. ICT is 12 hours ahead of EST.
When is it midnight in Singapore, what time is it in Vietnam?
When it is 12:00 AM (midnight) in Singapore (SGT), it is -1h later in Vietnam (ICT).
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