Perth to Argentina
-11hPerth
AWSTSOURCEArgentina
ARTGreen rows indicate typical business hours (9 AM - 5 PM)
AWST and ART on the World Map
The map below highlights the AWST (Australian Western Standard Time) and ART (Argentina Time) timezone regions across the globe.
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.
ART – Argentina Time
UTC-03:00Argentina Time (ART) is the standard time for Argentina, 3 hours behind UTC.
- •Argentina does not observe daylight saving time.
- •Buenos Aires is one of the most visited cities in South America.
- •ART is the same offset as BRT (UTC-03:00).
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.
Time Conversion Guide: Perth to Argentina
Perth runs on Australian Western Standard Time (AWST) at UTC+08:00. Argentina runs on Argentina Standard Time (ART) at UTC-03:00. That puts Perth 11 hours behind Argentina — a difference of -11h at the current offsets.
In practice, when it is 9:00 AM in Perth it is 10:00 PM in Argentina on the previous day. Midnight in Perth is 1:00 PM in Argentina. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Perth to Argentina time conversion table
| Perth (AWST) | Argentina (ART) | Day |
|---|---|---|
| 12:00 AM | 1:00 PM | previous day |
| 6:00 AM | 7:00 PM | previous day |
| 7:00 AM | 8:00 PM | previous day |
| 8:00 AM | 9:00 PM | previous day |
| 9:00 AM | 10:00 PM | previous day |
| 12:00 PM | 1:00 AM | same day |
| 3:00 PM | 4:00 AM | same day |
| 5:00 PM | 6:00 AM | same day |
| 6:00 PM | 7:00 AM | same day |
| 9:00 PM | 10:00 AM | same day |
Why people convert Perth to Argentina time
- Scheduling a call from Perth to Argentina: a 10:00 AM start in Perth lands at 11:00 PM in Argentina the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -11h gap: Perth and Argentina have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in Argentina is 10:00 PM in Perth.
- Coordinating a Perth-based team with Argentina 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 AWST" is unambiguous; "3 PM" across a -11h gap is not.
- With a -11h gap there is no shared 9-to-5 window, so alternate the early start: one week Perth takes the early slot, the next week Argentina does.
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.
About ART (Argentina Time)
Argentina Time (ART) is the time zone used throughout Argentina. Argentina does not observe daylight saving time. ART shares the same offset as Brasilia Time (BRT) and Uruguay's UYT.
Best time to call between Perth and Argentina
With a -11h offset there is no overlap inside a normal 9 AM – 5 PM day. Argentina opens at 9:00 AM ART, which is 10:00 PM in Perth, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Perth and Argentina have no shared working hours because of the -11h gap. Teams need to alternate early starts or rely on asynchronous handovers.
Perth is 11 hours behind Argentina (AWST UTC+08:00 → ART UTC-03:00). There is no shared 9-to-5 window, so plan around an early or late slot. 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 Perth and Argentina?
Perth (AWST, UTC+08:00) is 11 hours behind Argentina (ART, UTC-03:00). The gap is currently -11h.
How do I convert Perth time to Argentina time?
Add -11h to Perth local time. For example, 9:00 AM in Perth is 10:00 PM in Argentina (previous day).
What time is it in Argentina right now?
Argentina uses ART at UTC-03:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -11h offset from Perth.
What is the best time to call Argentina from Perth?
There is no shared working-hours window because of the -11h gap. The closest option is 1:00 PM in Perth, which is 2:00 AM in Argentina.
Which is behind, Perth or Argentina?
Perth is 11 hours behind Argentina. When it is 12:00 PM in Perth it is 1:00 AM in Argentina.
Do Perth and Argentina use different time zones?
Perth (Australia) uses AWST at UTC+08:00, while Argentina (Argentina) uses ART at UTC-03:00. The IANA identifiers are Australia/Perth and America/Buenos_Aires.
Does daylight saving time affect the Perth–Argentina difference?
Neither zone observes daylight saving time, so the -11h offset between Perth and Argentina is fixed all year.
Which other cities share Perth's time zone?
AWST also covers Perth, Mandurah, Bunbury, Geraldton.
Which countries use AWST, Perth's zone?
AWST is used in Australia (Western Australia).
Is there a day difference between Perth and Argentina?
Not normally. The -11h gap only pushes the date over the previous day.
What is the time difference between Perth and Argentina?
Argentina is -11h from Perth.
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 timezone is Argentina in?
Argentina operates on its local timezone.
What are the business hours in Perth?
Standard business hours in Perth are 9:00 AM - 5:00 PM AWST.
Which countries use AWST (Australian Western Standard Time)?
AWST is used in Australia (Western Australia).
Does AWST observe daylight saving time?
No, AWST does not observe daylight saving time and remains at UTC+08:00 year-round.
What are some interesting facts about AWST?
Western Australia does not observe daylight saving time. Perth is the most isolated major city in the world.
Which cities are in the ART timezone?
Major cities in the ART timezone include Buenos Aires, Córdoba, Rosario, Mendoza, La Plata, Tucumán.
What is the UTC offset for ART?
Argentina Time (ART) is at UTC-03:00.
What should I know about the ART timezone?
Argentina does not observe daylight saving time. Buenos Aires is one of the most visited cities in South America.
When is it midnight in Perth, what time is it in Argentina?
When it is 12:00 AM (midnight) in Perth (AWST), it is -11h later in Argentina (ART).
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