Sydney to Ho Chi Minh
-3hSydney
AESTSOURCEHo Chi Minh
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.
About Sydney
WikipediaSydney operates on Australian Eastern Standard Time (AEST/AEDT). As Australia's financial capital, Sydney opens global markets at the start of the business day.
Sydney is one of the first major cities to welcome the New Year.
About Ho Chi Minh
WikipediaHo Chi Minh City operates on Indochina Time (ICT), UTC+7. As Vietnam's economic powerhouse and a manufacturing hub, Saigon drives Southeast Asian trade.
The city has over 5 million motorbikes, outnumbering cars significantly.
Comparing Time Zones: Sydney and Ho Chi Minh
Sydney runs on Australian Eastern Standard Time (AEST) at UTC+10:00. Ho Chi Minh runs on Indochina Time (ICT) at UTC+07:00. That puts Sydney 3 hours behind Ho Chi Minh — a difference of -3h at the current offsets.
In practice, when it is 9:00 AM in Sydney it is 6:00 AM in Ho Chi Minh. Midnight in Sydney is 9:00 PM in Ho Chi Minh. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Sydney to Ho Chi Minh time conversion table
| Sydney (AEST) | Ho Chi Minh (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 Sydney to Ho Chi Minh time
- Scheduling a call from Sydney to Ho Chi Minh: a 10:00 AM start in Sydney lands at 7:00 AM in Ho Chi Minh, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Sydney and Ho Chi Minh 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.
- Coordinating a Sydney-based team with Ho Chi Minh 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 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 Sydney and need Ho Chi Minh colleagues present.
- Sydney: Clocks spring forward on Sat, Oct 3, 2026. Re-check this page after that date because the offset changes and so does the -3h gap.
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 Sydney and Ho Chi Minh
Both Sydney and Ho Chi Minh 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
Sydney and Ho Chi Minh share 5 hours of working-hours overlap (12:00 PM–5:00 PM AEST), so scheduling a live meeting is straightforward.
Sydney is 3 hours behind Ho Chi Minh (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
Sydney
❄ Currently in Standard Time
Standard: UTC+10:00 · DST: UTC+11:00
Clocks spring forward on Sat, Oct 3, 2026
Ho Chi Minh
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 Sydney and Ho Chi Minh?
Sydney (AEST, UTC+10:00) is 3 hours behind Ho Chi Minh (ICT, UTC+07:00). The gap is currently -3h.
How do I convert Sydney time to Ho Chi Minh time?
Add -3h to Sydney local time. For example, 9:00 AM in Sydney is 6:00 AM in Ho Chi Minh.
What time is it in Ho Chi Minh right now?
Ho Chi Minh 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 Sydney.
What is the best time to call Ho Chi Minh from Sydney?
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, Sydney or Ho Chi Minh?
Sydney is 3 hours behind Ho Chi Minh. When it is 12:00 PM in Sydney it is 9:00 AM in Ho Chi Minh.
Do Sydney and Ho Chi Minh use different time zones?
Sydney (Australia) uses AEST at UTC+10:00, while Ho Chi Minh (Vietnam) uses ICT at UTC+07:00. The IANA identifiers are Australia/Sydney and Asia/Ho_Chi_Minh.
Does daylight saving time affect the Sydney–Ho Chi Minh difference?
Neither zone observes daylight saving time, so the -3h offset between Sydney and Ho Chi Minh is fixed all year.
Which other cities share Sydney's time zone?
AEST also covers Sydney, Melbourne, Brisbane, Canberra, Hobart, Gold Coast.
Which countries use AEST, Sydney's zone?
AEST is used in Australia (NSW, VIC, QLD, TAS, ACT), Papua New Guinea.
Is there a day difference between Sydney and Ho Chi Minh?
Not normally. The -3h gap only pushes the date over the previous day.
What is the time difference between Sydney and Ho Chi Minh?
Ho Chi Minh is -3h from Sydney.
What timezone is Sydney in?
Sydney operates on Australian Eastern Standard Time (AEST/AEDT). As Australia's financial capital, Sydney opens global markets at the start of the business day.
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 are the business hours in Sydney?
Standard business hours in Sydney are 9:00 AM - 5:00 PM AEST.
What are the business hours in Ho Chi Minh?
Standard business hours in Ho Chi Minh are 8:00 AM - 5:00 PM ICT.
What is the best time to schedule a call between Sydney and Ho Chi Minh?
The best overlap for a call is when both cities are in business hours. Sydney works 9:00 AM - 5:00 PM AEST and Ho Chi Minh works 8:00 AM - 5:00 PM ICT (-3h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Sydney and Ho Chi Minh?
Sydney uses AUD (A$) while Ho Chi Minh uses VND (₫). Check current exchange rates when planning travel or business between these cities.
How do Sydney and Ho Chi Minh compare in size?
Sydney has a population of approximately 5.4 million (metro: 5.4 million), while Ho Chi Minh has approximately 9 million (metro: 13 million).
What are the major landmarks in Sydney and Ho Chi Minh?
Sydney is known for Sydney Opera House, Sydney Harbour Bridge, Bondi Beach. Ho Chi Minh is famous for Notre-Dame Cathedral, War Remnants Museum, Ben Thanh Market.
Do Sydney and Ho Chi Minh have stock exchanges?
Yes. Sydney has the ASX (Australian Securities Exchange) and Ho Chi Minh has the HOSE (Ho Chi Minh Stock Exchange). The -3h time difference affects trading hour overlaps between these exchanges.
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 Sydney, what time is it in Ho Chi Minh?
When it is 12:00 AM (midnight) in Sydney (AEST), it is -3h later in Ho Chi Minh (ICT).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More Sydney time conversions
- sydney to melbourne
- sydney to perth
- sydney to aest
- sydney to aedt
- sydney to new york
- sydney to london
- sydney to dubai
- sydney to tokyo
- sydney to singapore
- sydney to los angeles
- sydney to paris
- sydney to delhi
- sydney to mumbai
- sydney to berlin
- sydney to hong kong
- sydney to toronto
- sydney to kathmandu
- new york to sydney
- london to sydney
- dubai to sydney
- tokyo to sydney
- singapore to sydney
- los angeles to sydney
- paris to sydney
- delhi to sydney
- mumbai to sydney
- berlin to sydney
- hong kong to sydney
- toronto to sydney
- kathmandu to sydney
See every conversion from Sydney →·See every conversion from Ho Chi Minh →