Sydney to PST
-18hSydney
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.
About Sydney
WikipediaSydney operates on Australian Eastern Standard Time (AEST/AEDT). As Australia's financial capital, Sydney opens global markets at the start of the business day.
Sydney is one of the first major cities to welcome the New Year.
Comparing Time Zones: Sydney and PST
Sydney runs on Australian Eastern Standard Time (AEST) at UTC+10:00. PST runs on Pacific Standard Time (PST) at UTC-08:00. That puts Sydney 18 hours behind PST — a difference of -18h at the current offsets.
In practice, when it is 9:00 AM in Sydney it is 3:00 PM in PST on the previous day. Midnight in Sydney is 6:00 AM in PST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Sydney to PST time conversion table
| Sydney (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 Sydney to PST time
- Scheduling a call from Sydney to PST: a 10:00 AM start in Sydney 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: Sydney 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 Sydney.
- Watching a live event or market open: Sydney viewers need 3:00 PM in PST to catch a 9:00 AM start there, and 6:00 PM if the event is anchored to Sydney.
- 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 Sydney takes the early slot, the next week PST does.
- Sydney: Clocks spring forward on Sat, Oct 3, 2026. Re-check this page after that date because the offset changes and so does the -18h gap.
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 Sydney 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 Sydney, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Sydney and PST have no shared working hours because of the -18h gap. Teams need to alternate early starts or rely on asynchronous handovers.
Sydney 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
Sydney
❄ 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 Sydney and PST?
Sydney (AEST, UTC+10:00) is 18 hours behind PST (PST, UTC-08:00). The gap is currently -18h.
How do I convert Sydney time to PST time?
Add -18h to Sydney local time. For example, 9:00 AM in Sydney 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 Sydney.
What is the best time to call PST from Sydney?
There is no shared working-hours window because of the -18h gap. The closest option is 1:00 PM in Sydney, which is 7:00 PM in PST.
Which is behind, Sydney or PST?
Sydney is 18 hours behind PST. When it is 12:00 PM in Sydney it is 6:00 PM in PST.
Do Sydney and PST use different time zones?
Sydney (Australia) uses AEST at UTC+10:00, while PST uses PST at UTC-08:00. The IANA identifiers are Australia/Sydney and America/Los_Angeles.
Does daylight saving time affect the Sydney–PST difference?
Neither zone observes daylight saving time, so the -18h offset between Sydney and PST is fixed all year.
Which other cities share Sydney's time zone?
AEST also covers Sydney, Melbourne, Brisbane, Canberra, Hobart, Gold Coast.
Which countries use AEST, Sydney's zone?
AEST is used in Australia (NSW, VIC, QLD, TAS, ACT), Papua New Guinea.
Is there a day difference between Sydney and PST?
Sometimes. The -18h gap is large enough that 8:00 PM or later in Sydney already falls on the in PST.
What is the time difference between Sydney and PST?
PST is -18h from Sydney.
What timezone is Sydney in?
Sydney operates on Australian Eastern Standard Time (AEST/AEDT). As Australia's financial capital, Sydney opens global markets at the start of the business day.
What timezone is PST in?
PST operates on its local timezone.
What are the business hours in Sydney?
Standard business hours in Sydney are 9:00 AM - 5:00 PM AEST.
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 Sydney, what time is it in PST?
When it is 12:00 AM (midnight) in Sydney (AEST), it is -18h later in PST (PST).
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