ICT to Perth
+1hICT
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.
ICT to Perth Time Difference – Complete Guide
ICT runs on Indochina Time (ICT) at UTC+07:00. Perth runs on Australian Western Standard Time (AWST) at UTC+08:00. That puts ICT 1 hour ahead of Perth — a difference of +1h at the current offsets.
In practice, when it is 9:00 AM in ICT it is 10:00 AM in Perth. Midnight in ICT is 1:00 AM in Perth. Neither zone observes daylight saving time, so the offset between them stays constant all year.
ICT to Perth time conversion table
| ICT (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 ICT to Perth time
- Scheduling a call from ICT to Perth: a 10:00 AM start in ICT lands at 11:00 AM in Perth, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both ICT 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.
- Coordinating a ICT-based team with Perth 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 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 ICT 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 ICT and Perth
Both ICT 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
ICT and Perth share 7 hours of working-hours overlap (9:00 AM–4:00 PM ICT), so scheduling a live meeting is straightforward.
ICT 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 ICT and Perth?
ICT (ICT, UTC+07:00) is 1 hour ahead of Perth (AWST, UTC+08:00). The gap is currently +1h.
How do I convert ICT time to Perth time?
Add +1h to ICT local time. For example, 9:00 AM in ICT 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 ICT.
What is the best time to call Perth from ICT?
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, ICT or Perth?
ICT is 1 hour ahead of Perth. When it is 12:00 PM in ICT it is 1:00 PM in Perth.
Do ICT and Perth use different time zones?
ICT 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 ICT–Perth difference?
Neither zone observes daylight saving time, so the +1h offset between ICT and Perth is fixed all year.
Which other cities share ICT's time zone?
ICT also covers Bangkok, Ho Chi Minh City, Hanoi, Jakarta, Phnom Penh, Vientiane.
Which countries use ICT, ICT's zone?
ICT is used in Thailand, Vietnam, Cambodia, Laos, Indonesia (WIB).
Is there a day difference between ICT and Perth?
Not normally. The +1h gap only pushes the date over for late-evening times.
What is the time difference between ICT and Perth?
Perth is +1h from ICT.
What timezone is ICT in?
ICT 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 ICT, what time is it in Perth?
When it is 12:00 AM (midnight) in ICT (ICT), it is +1h later in Perth (AWST).
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See every conversion from ICT →·See every conversion from Perth →