AEST to Vietnam
-3hAEST
AESTSOURCEVietnam
ICTGreen rows indicate typical business hours (9 AM - 5 PM)
AEST and ICT on the World Map
The map below highlights the AEST (Australian Eastern Standard Time) and ICT (Indochina Time) timezone regions across the globe.
AEST – Australian Eastern Standard Time
UTC+10:00Australian Eastern Standard Time (AEST) covers eastern Australia, 10 hours ahead of UTC.
- •Queensland does not observe daylight saving time, staying on AEST year-round.
- •Sydney and Melbourne switch to AEDT (UTC+11:00) in summer.
- •The Australian Securities Exchange (ASX) operates on AEST/AEDT.
- •AEST is 15 hours ahead of EST during winter.
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.
Comparing Time Zones: AEST and Vietnam
AEST runs on Australian Eastern Standard Time (AEST) at UTC+10:00. Vietnam runs on Indochina Time (ICT) at UTC+07:00. That puts AEST 3 hours behind Vietnam — a difference of -3h at the current offsets.
In practice, when it is 9:00 AM in AEST it is 6:00 AM in Vietnam. Midnight in AEST is 9:00 PM in Vietnam. Neither zone observes daylight saving time, so the offset between them stays constant all year.
AEST to Vietnam time conversion table
| AEST (AEST) | Vietnam (ICT) | 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 AEST to Vietnam time
- Scheduling a call from AEST to Vietnam: a 10:00 AM start in AEST lands at 7:00 AM in Vietnam, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both AEST and Vietnam are inside the 9-to-5 working day between 12:00 PM and 5:00 PM AEST time (9:00 AM–2:00 PM ICT). That is roughly 5 hours of usable overlap.
- Watching a live event or market open: AEST viewers need 6:00 AM in Vietnam to catch a 9:00 AM start there, and 3:00 AM if the event is anchored to AEST.
- Always state the zone abbreviation, not just the hour. "3:00 PM AEST" is unambiguous; "3 PM" across a -3h gap is not.
- Block 12:00 PM–5:00 PM AEST as the recurring meeting window if you work primarily from AEST and need Vietnam colleagues present.
About AEST (Australian Eastern Standard Time)
Australian Eastern Standard Time (AEST) is used in the eastern states of Australia including New South Wales, Victoria, Queensland, Tasmania, and the ACT. During summer (October to April), NSW, VIC, TAS, and ACT switch to Australian Eastern Daylight Time (AEDT, UTC+11:00), while Queensland remains on AEST year-round.
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 AEST and Vietnam
Both AEST and Vietnam sit inside the 9 AM – 5 PM working day between 12:00 PM–5:00 PM AEST, which is 9:00 AM–2:00 PM ICT. That gives roughly 5 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
AEST and Vietnam share 5 hours of working-hours overlap (12:00 PM–5:00 PM AEST), so scheduling a live meeting is straightforward.
AEST is 3 hours behind Vietnam (AEST UTC+10:00 → ICT UTC+07:00). The shared working window is 12:00 PM–5:00 PM AEST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
AEST
❄ Currently in Standard Time
Standard: UTC+10:00 · DST: UTC+11:00
Clocks spring forward on Sat, Oct 3, 2026
Vietnam
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:
Frequently Asked Questions
What is the time difference between AEST and Vietnam?
AEST (AEST, UTC+10:00) is 3 hours behind Vietnam (ICT, UTC+07:00). The gap is currently -3h.
How do I convert AEST time to Vietnam time?
Add -3h to AEST local time. For example, 9:00 AM in AEST is 6:00 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 -3h offset from AEST.
What is the best time to call Vietnam from AEST?
Call between 12:00 PM and 5:00 PM AEST — that maps to 9:00 AM–2:00 PM ICT and keeps both parties inside the working day.
Which is behind, AEST or Vietnam?
AEST is 3 hours behind Vietnam. When it is 12:00 PM in AEST it is 9:00 AM in Vietnam.
Do AEST and Vietnam use different time zones?
AEST uses AEST at UTC+10:00, while Vietnam (Vietnam) uses ICT at UTC+07:00. The IANA identifiers are Australia/Sydney and Asia/Ho_Chi_Minh.
Does daylight saving time affect the AEST–Vietnam difference?
Neither zone observes daylight saving time, so the -3h offset between AEST and Vietnam is fixed all year.
Which other cities share AEST's time zone?
AEST also covers Sydney, Melbourne, Brisbane, Canberra, Hobart, Gold Coast.
Which countries use AEST, AEST's zone?
AEST is used in Australia (NSW, VIC, QLD, TAS, ACT), Papua New Guinea.
Is there a day difference between AEST and Vietnam?
Not normally. The -3h gap only pushes the date over the previous day.
What is the time difference between AEST and Vietnam?
Vietnam is -3h from AEST.
What timezone is AEST in?
AEST operates on its local timezone.
What timezone is Vietnam in?
Vietnam operates on its local timezone.
Which countries use AEST (Australian Eastern Standard Time)?
AEST is used in Australia (NSW, VIC, QLD, TAS, ACT), Papua New Guinea.
Does AEST observe daylight saving time?
Yes, AEST switches to AEDT during summer months.
What are some interesting facts about AEST?
Queensland does not observe daylight saving time, staying on AEST year-round. Sydney and Melbourne switch to AEDT (UTC+11:00) in summer.
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 AEST, what time is it in Vietnam?
When it is 12:00 AM (midnight) in AEST (AEST), it is -3h later in Vietnam (ICT).
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See every conversion from AEST →·See every conversion from Vietnam →