Thailand to Perth
+1hThailand
ICTSOURCEPerth
AWSTGreen rows indicate typical business hours (9 AM - 5 PM)
ICT and AWST on the World Map
The map below highlights the ICT (Indochina Time) and AWST (Australian Western Standard Time) timezone regions across the globe.
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.
AWST – Australian Western Standard Time
UTC+08:00Australian Western Standard Time (AWST) is the time zone for Western Australia, 8 hours ahead of UTC.
- •Western Australia does not observe daylight saving time.
- •Perth is the most isolated major city in the world.
- •AWST is the same offset as China Standard Time and Singapore Time.
About Perth
WikipediaPerth operates on Australian Western Time (AWST), UTC+8 with no daylight saving. As Australia's mining capital, Perth coordinates with Asian markets.
Western Australia does not observe daylight saving time.
Understanding the +1h Gap: Thailand vs Perth
Thailand runs on Indochina Time (ICT) at UTC+07:00. Perth runs on Australian Western Standard Time (AWST) at UTC+08:00. That puts Thailand 1 hour ahead of Perth — a difference of +1h at the current offsets.
In practice, when it is 9:00 AM in Thailand it is 10:00 AM in Perth. Midnight in Thailand is 1:00 AM in Perth. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Thailand to Perth time conversion table
| Thailand (ICT) | Perth (AWST) | Day |
|---|---|---|
| 12:00 AM | 1:00 AM | same day |
| 6:00 AM | 7:00 AM | same day |
| 7:00 AM | 8:00 AM | same day |
| 8:00 AM | 9:00 AM | same day |
| 9:00 AM | 10:00 AM | same day |
| 12:00 PM | 1:00 PM | same day |
| 3:00 PM | 4:00 PM | same day |
| 5:00 PM | 6:00 PM | same day |
| 6:00 PM | 7:00 PM | same day |
| 9:00 PM | 10:00 PM | same day |
Why people convert Thailand to Perth time
- Scheduling a call from Thailand to Perth: a 10:00 AM start in Thailand lands at 11:00 AM in Perth, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Thailand and Perth are inside the 9-to-5 working day between 9:00 AM and 4:00 PM ICT time (10:00 AM–5:00 PM AWST). That is roughly 7 hours of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in Thailand is 9:00 PM in Perth 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 +1h gap is not.
- Block 9:00 AM–4:00 PM ICT as the recurring meeting window if you work primarily from Thailand and need Perth 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 AWST (Australian Western Standard Time)
Australian Western Standard Time (AWST) is used in Western Australia. WA does not observe daylight saving time, having rejected it in multiple referendums. Perth is the most remote major city in the world.
Best time to call between Thailand and Perth
Both Thailand and Perth sit inside the 9 AM – 5 PM working day between 9:00 AM–4:00 PM ICT, which is 10:00 AM–5:00 PM AWST. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Thailand and Perth share 7 hours of working-hours overlap (9:00 AM–4:00 PM ICT), so scheduling a live meeting is straightforward.
Thailand is 1 hour ahead of Perth (ICT UTC+07:00 → AWST UTC+08:00). The shared working window is 9:00 AM–4:00 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:
Frequently Asked Questions
What is the time difference between Thailand and Perth?
Thailand (ICT, UTC+07:00) is 1 hour ahead of Perth (AWST, UTC+08:00). The gap is currently +1h.
How do I convert Thailand time to Perth time?
Add +1h to Thailand local time. For example, 9:00 AM in Thailand is 10:00 AM in Perth.
What time is it in Perth right now?
Perth uses AWST at UTC+08:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +1h offset from Thailand.
What is the best time to call Perth from Thailand?
Call between 9:00 AM and 4:00 PM ICT — that maps to 10:00 AM–5:00 PM AWST and keeps both parties inside the working day.
Which is ahead, Thailand or Perth?
Thailand is 1 hour ahead of Perth. When it is 12:00 PM in Thailand it is 1:00 PM in Perth.
Do Thailand and Perth use different time zones?
Thailand (Thailand) uses ICT at UTC+07:00, while Perth (Australia) uses AWST at UTC+08:00. The IANA identifiers are Asia/Bangkok and Australia/Perth.
Does daylight saving time affect the Thailand–Perth difference?
Neither zone observes daylight saving time, so the +1h offset between Thailand and Perth is fixed all year.
Which other cities share Thailand's time zone?
ICT also covers Bangkok, Ho Chi Minh City, Hanoi, Jakarta, Phnom Penh, Vientiane.
Which countries use ICT, Thailand's zone?
ICT is used in Thailand, Vietnam, Cambodia, Laos, Indonesia (WIB).
Is there a day difference between Thailand and Perth?
Not normally. The +1h gap only pushes the date over for late-evening times.
What is the time difference between Thailand and Perth?
Perth is +1h from Thailand.
What timezone is Thailand in?
Thailand operates on its local timezone.
What timezone is Perth in?
Perth operates on Australian Western Time (AWST), UTC+8 with no daylight saving. As Australia's mining capital, Perth coordinates with Asian markets.
What are the business hours in Perth?
Standard business hours in Perth are 9:00 AM - 5:00 PM AWST.
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 AWST timezone?
Major cities in the AWST timezone include Perth, Mandurah, Bunbury, Geraldton.
What is the UTC offset for AWST?
Australian Western Standard Time (AWST) is at UTC+08:00.
What should I know about the AWST timezone?
Western Australia does not observe daylight saving time. Perth is the most isolated major city in the world.
When is it midnight in Thailand, what time is it in Perth?
When it is 12:00 AM (midnight) in Thailand (ICT), it is +1h later in Perth (AWST).
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