PDT to Perth
+15hPDT
PDTSOURCEPerth
AWSTGreen rows indicate typical business hours (9 AM - 5 PM)
PDT and AWST on the World Map
The map below highlights the PDT (Pacific Daylight Time) and AWST (Australian Western Standard Time) timezone regions across the globe.
PDT – Pacific Daylight Time
UTC-07:00Pacific Daylight Time (PDT) is the daylight saving offset on the US/Canada Pacific coast, 7 hours behind UTC.
- •PDT aligns with MST at UTC-07:00.
- •Tech company earnings calls often reference PDT/PST times.
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.
Comparing Time Zones: PDT and Perth
PDT runs on Pacific Daylight Time (PDT) at UTC-07:00. Perth runs on Australian Western Standard Time (AWST) at UTC+08:00. That puts PDT 15 hours ahead of Perth — a difference of +15h at the current offsets.
In practice, when it is 9:00 AM in PDT it is 12:00 AM in Perth on the next day. Midnight in PDT is 3:00 PM in Perth. Neither zone observes daylight saving time, so the offset between them stays constant all year.
PDT to Perth time conversion table
| PDT (PDT) | Perth (AWST) | Day |
|---|---|---|
| 12:00 AM | 3:00 PM | same day |
| 6:00 AM | 9:00 PM | same day |
| 7:00 AM | 10:00 PM | same day |
| 8:00 AM | 11:00 PM | same day |
| 9:00 AM | 12:00 AM | next day |
| 12:00 PM | 3:00 AM | next day |
| 3:00 PM | 6:00 AM | next day |
| 5:00 PM | 8:00 AM | next day |
| 6:00 PM | 9:00 AM | next day |
| 9:00 PM | 12:00 PM | next day |
Why people convert PDT to Perth time
- Scheduling a call from PDT to Perth: a 10:00 AM start in PDT lands at 1:00 AM in Perth the next day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +15h gap: PDT and Perth 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 Perth is 12:00 AM in PDT.
- Booking travel or deliveries: tracking Perth local time against PDT keeps pickup windows and arrival estimates honest across the +15h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM PDT" is unambiguous; "3 PM" across a +15h gap is not.
- With a +15h gap there is no shared 9-to-5 window, so alternate the early start: one week PDT takes the early slot, the next week Perth does.
About PDT (Pacific Daylight Time)
Pacific Daylight Time (PDT) is observed from March to November on the Pacific coast. During PDT, the west coast is 7 hours behind UTC and only 2 hours behind the east coast's EDT.
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 PDT and Perth
With a +15h offset there is no overlap inside a normal 9 AM – 5 PM day. Perth opens at 9:00 AM AWST, which is 12:00 AM in PDT, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
PDT and Perth have no shared working hours because of the +15h gap. Teams need to alternate early starts or rely on asynchronous handovers.
PDT is 15 hours ahead of Perth (PDT UTC-07:00 → AWST UTC+08:00). 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
PDT
☀ Currently in DST
Standard: UTC-08:00 · DST: UTC-07:00
Clocks fall back on Sun, Nov 1, 2026
Perth
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 PDT and Perth?
PDT (PDT, UTC-07:00) is 15 hours ahead of Perth (AWST, UTC+08:00). The gap is currently +15h.
How do I convert PDT time to Perth time?
Add +15h to PDT local time. For example, 9:00 AM in PDT is 12:00 AM in Perth (next day).
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 +15h offset from PDT.
What is the best time to call Perth from PDT?
There is no shared working-hours window because of the +15h gap. The closest option is 1:00 PM in PDT, which is 4:00 AM in Perth.
Which is ahead, PDT or Perth?
PDT is 15 hours ahead of Perth. When it is 12:00 PM in PDT it is 3:00 AM in Perth.
Do PDT and Perth use different time zones?
PDT uses PDT at UTC-07:00, while Perth (Australia) uses AWST at UTC+08:00. The IANA identifiers are America/Los_Angeles and Australia/Perth.
Does daylight saving time affect the PDT–Perth difference?
Neither zone observes daylight saving time, so the +15h offset between PDT and Perth is fixed all year.
Which other cities share PDT's time zone?
PDT also covers Los Angeles, San Francisco, Seattle, Vancouver, Portland.
Which countries use PDT, PDT's zone?
PDT is used in United States (Pacific), Canada (British Columbia), Mexico (Baja California).
Is there a day difference between PDT and Perth?
Sometimes. The +15h gap is large enough that 8:00 PM or later in PDT already falls on the next day in Perth.
What is the time difference between PDT and Perth?
Perth is +15h from PDT.
What timezone is PDT in?
PDT 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 PDT (Pacific Daylight Time)?
PDT is used in United States (Pacific), Canada (British Columbia), Mexico (Baja California).
Does PDT observe daylight saving time?
Yes, PDT switches to PST during summer months.
What are some interesting facts about PDT?
PDT aligns with MST at UTC-07:00. Tech company earnings calls often reference PDT/PST times.
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 PDT, what time is it in Perth?
When it is 12:00 AM (midnight) in PDT (PDT), it is +15h later in Perth (AWST).
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See every conversion from PDT →·See every conversion from Perth →