Perth to Santiago
-11hPerth
AWSTSOURCESantiago
CLSTGreen rows indicate typical business hours (9 AM - 5 PM)
AWST and CLST on the World Map
The map below highlights the AWST (Australian Western Standard Time) and CLST (Chile Standard 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.
CLT – Chile Standard Time
UTC-04:00Chile Standard Time (CLT) is the time zone for continental Chile, 4 hours behind UTC.
- •Chile observes daylight saving time, switching to CLST (UTC-03:00) in summer.
- •Santiago is the largest city in Chile with over 6 million in the metro area.
- •Chile spans over 4,300 km from north to south but uses one timezone.
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.
Comparing Time Zones: Perth and Santiago
Perth runs on Australian Western Standard Time (AWST) at UTC+08:00. Santiago runs on Chile Summer Time (CLST) at UTC-03:00, also currently on daylight saving time. That puts Perth 11 hours behind Santiago — a difference of -11h at the current offsets.
In practice, when it is 9:00 AM in Perth it is 10:00 PM in Santiago on the previous day. Midnight in Perth is 1:00 PM in Santiago.Santiago observes daylight saving time while Perth does not, so the gap narrows or widens by an hour part of the year.
Perth to Santiago time conversion table
| Perth (AWST) | Santiago (CLST) | 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 Santiago time
- Scheduling a call from Perth to Santiago: a 10:00 AM start in Perth lands at 11:00 PM in Santiago the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -11h gap: Perth and Santiago 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 Santiago is 10:00 PM in Perth.
- Keeping family and friends in sync: knowing that 8:00 PM in Perth is 9:00 AM in Santiago makes it easy to avoid calling at 3 AM.
- 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 Santiago does.
- Santiago: Clocks fall back on Sun, Apr 4, 2027. Any meeting series spanning that date will shift by an hour in local 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.
About CLT (Chile Standard Time)
Chile Standard Time (CLT) is the standard time in Chile. During summer months (October to March), Chile switches to Chile Summer Time (CLST, UTC-03:00). Chile is the longest north-south country in the world.
Best time to call between Perth and Santiago
With a -11h offset there is no overlap inside a normal 9 AM – 5 PM day. Santiago opens at 9:00 AM CLST, 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 Santiago 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 Santiago (AWST UTC+08:00 → CLST 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.
🕐 Daylight Saving Time Info
Perth
Does not observe DST
Santiago
☀ Currently in DST
Standard: UTC-04:00 · DST: UTC-03:00
Clocks fall back on Sun, Apr 4, 2027
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 Santiago?
Perth (AWST, UTC+08:00) is 11 hours behind Santiago (CLST, UTC-03:00). The gap is currently -11h.
How do I convert Perth time to Santiago time?
Add -11h to Perth local time. For example, 9:00 AM in Perth is 10:00 PM in Santiago (previous day).
What time is it in Santiago right now?
Santiago uses CLST 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 Santiago 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 Santiago.
Which is behind, Perth or Santiago?
Perth is 11 hours behind Santiago. When it is 12:00 PM in Perth it is 1:00 AM in Santiago.
Do Perth and Santiago use different time zones?
Perth (Australia) uses AWST at UTC+08:00, while Santiago (Chile) uses CLST at UTC-03:00. The IANA identifiers are Australia/Perth and America/Santiago.
Does daylight saving time affect the Perth–Santiago difference?
Yes at the moment: Santiago is on daylight saving time and Perth is not, so the -11h gap shifts by an hour when exactly one of them changes clocks.
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 Santiago?
Not normally. The -11h gap only pushes the date over the previous day.
What is the time difference between Perth and Santiago?
Santiago 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 Santiago in?
Santiago 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 CLT timezone?
Major cities in the CLT timezone include Santiago, Valparaíso, Concepción, Viña del Mar, Antofagasta.
What is the UTC offset for CLT?
Chile Standard Time (CLT) is at UTC-04:00. During daylight saving time, it shifts to CLST.
What should I know about the CLT timezone?
Chile observes daylight saving time, switching to CLST (UTC-03:00) in summer. Santiago is the largest city in Chile with over 6 million in the metro area.
When is it midnight in Perth, what time is it in Santiago?
When it is 12:00 AM (midnight) in Perth (AWST), it is -11h later in Santiago (CLT).
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