AEST to PST
-18hAEST
AESTSOURCEPST
PSTGreen rows indicate typical business hours (9 AM - 5 PM)
AEST and PST on the World Map
The map below highlights the AEST (Australian Eastern Standard Time) and PST (Pacific Standard Time) timezone regions across the globe.
AEST – Australian Eastern Standard Time
UTC+10:00Australian Eastern Standard Time (AEST) covers eastern Australia, 10 hours ahead of UTC.
- •Queensland does not observe daylight saving time, staying on AEST year-round.
- •Sydney and Melbourne switch to AEDT (UTC+11:00) in summer.
- •The Australian Securities Exchange (ASX) operates on AEST/AEDT.
- •AEST is 15 hours ahead of EST during winter.
PST – Pacific Standard Time
UTC-08:00Pacific Standard Time (PST) is the time zone for the US and Canadian Pacific coast, 8 hours behind UTC.
- •Silicon Valley and the world's biggest tech companies operate on Pacific Time.
- •The Hollywood film industry runs on PST/PDT.
- •PST is 3 hours behind EST, creating a significant business hours gap.
- •Vancouver, Canada's third-largest city, uses PST.
Time Conversion Guide: AEST to PST
AEST runs on Australian Eastern Standard Time (AEST) at UTC+10:00. PST runs on Pacific Standard Time (PST) at UTC-08:00. That puts AEST 18 hours behind PST — a difference of -18h at the current offsets.
In practice, when it is 9:00 AM in AEST it is 3:00 PM in PST on the previous day. Midnight in AEST is 6:00 AM in PST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
AEST to PST time conversion table
| AEST (AEST) | PST (PST) | Day |
|---|---|---|
| 12:00 AM | 6:00 AM | previous day |
| 6:00 AM | 12:00 PM | previous day |
| 7:00 AM | 1:00 PM | previous day |
| 8:00 AM | 2:00 PM | previous day |
| 9:00 AM | 3:00 PM | previous day |
| 12:00 PM | 6:00 PM | previous day |
| 3:00 PM | 9:00 PM | previous day |
| 5:00 PM | 11:00 PM | previous day |
| 6:00 PM | 12:00 AM | same day |
| 9:00 PM | 3:00 AM | same day |
Why people convert AEST to PST time
- Scheduling a call from AEST to PST: a 10:00 AM start in AEST lands at 4:00 PM in PST the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -18h gap: AEST and PST 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 PST is 3:00 PM in AEST.
- Keeping family and friends in sync: knowing that 8:00 PM in AEST is 2:00 AM in PST makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM AEST" is unambiguous; "3 PM" across a -18h gap is not.
- With a -18h gap there is no shared 9-to-5 window, so alternate the early start: one week AEST takes the early slot, the next week PST does.
About AEST (Australian Eastern Standard Time)
Australian Eastern Standard Time (AEST) is used in the eastern states of Australia including New South Wales, Victoria, Queensland, Tasmania, and the ACT. During summer (October to April), NSW, VIC, TAS, and ACT switch to Australian Eastern Daylight Time (AEDT, UTC+11:00), while Queensland remains on AEST year-round.
About PST (Pacific Standard Time)
Pacific Standard Time (PST) covers the west coast of North America, including tech hubs like San Francisco and Seattle, and entertainment capital Los Angeles. The Pacific Time Zone is home to Silicon Valley and the world's largest technology companies. During summer, clocks advance to Pacific Daylight Time (PDT, UTC-07:00). PST is also observed in Baja California, Mexico.
Best time to call between AEST and PST
With a -18h offset there is no overlap inside a normal 9 AM – 5 PM day. PST opens at 9:00 AM PST, which is 3:00 PM in AEST, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
AEST and PST have no shared working hours because of the -18h gap. Teams need to alternate early starts or rely on asynchronous handovers.
AEST is 18 hours behind PST (AEST UTC+10:00 → PST 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
AEST
❄ Currently in Standard Time
Standard: UTC+10:00 · DST: UTC+11:00
Clocks spring forward on Sat, Oct 3, 2026
PST
☀ Currently in DST
Standard: UTC-08:00 · DST: UTC-07:00
Clocks fall back on Sun, Nov 1, 2026
⚠ These locations are currently in different DST states, so the time difference may change when clocks adjust.
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 AEST and PST?
AEST (AEST, UTC+10:00) is 18 hours behind PST (PST, UTC-08:00). The gap is currently -18h.
How do I convert AEST time to PST time?
Add -18h to AEST local time. For example, 9:00 AM in AEST is 3:00 PM in PST (previous day).
What time is it in PST right now?
PST uses PST at UTC-08:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -18h offset from AEST.
What is the best time to call PST from AEST?
There is no shared working-hours window because of the -18h gap. The closest option is 1:00 PM in AEST, which is 7:00 PM in PST.
Which is behind, AEST or PST?
AEST is 18 hours behind PST. When it is 12:00 PM in AEST it is 6:00 PM in PST.
Does daylight saving time affect the AEST–PST difference?
Neither zone observes daylight saving time, so the -18h offset between AEST and PST is fixed all year.
Which other cities share AEST's time zone?
AEST also covers Sydney, Melbourne, Brisbane, Canberra, Hobart, Gold Coast.
Which countries use AEST, AEST's zone?
AEST is used in Australia (NSW, VIC, QLD, TAS, ACT), Papua New Guinea.
Is there a day difference between AEST and PST?
Sometimes. The -18h gap is large enough that 8:00 PM or later in AEST already falls on the in PST.
What is the time difference between AEST and PST?
PST is -18h from AEST.
What timezone is AEST in?
AEST operates on its local timezone.
What timezone is PST in?
PST operates on its local timezone.
Which countries use AEST (Australian Eastern Standard Time)?
AEST is used in Australia (NSW, VIC, QLD, TAS, ACT), Papua New Guinea.
Does AEST observe daylight saving time?
Yes, AEST switches to AEDT during summer months.
What are some interesting facts about AEST?
Queensland does not observe daylight saving time, staying on AEST year-round. Sydney and Melbourne switch to AEDT (UTC+11:00) in summer.
Which cities are in the PST timezone?
Major cities in the PST timezone include Los Angeles, San Francisco, Seattle, Vancouver, San Diego, Portland, Las Vegas, Sacramento.
What is the UTC offset for PST?
Pacific Standard Time (PST) is at UTC-08:00. During daylight saving time, it shifts to PDT.
What should I know about the PST timezone?
Silicon Valley and the world's biggest tech companies operate on Pacific Time. The Hollywood film industry runs on PST/PDT.
When is it midnight in AEST, what time is it in PST?
When it is 12:00 AM (midnight) in AEST (AEST), it is -18h later in PST (PST).
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See every conversion from AEST →·See every conversion from PST →