AEST to PST Converter | Australia to US West

AEST to PST Conversion Table

Offset: AEST -18 hours = PST. Applies during standard time. Work hours (9 AM–5 PM) highlighted.

AEST		PST
00:00		06:00 (−1 day)
01:00		07:00 (−1 day)
02:00		08:00 (−1 day)
03:00		09:00 (−1 day)
04:00		10:00 (−1 day)
05:00		11:00 (−1 day)
06:00		12:00 (−1 day)
07:00		13:00 (−1 day)
08:00		14:00 (−1 day)
09:00		15:00 (−1 day)
10:00		16:00 (−1 day)
11:00		17:00 (−1 day)
12:00		18:00 (−1 day)
13:00		19:00 (−1 day)
14:00		20:00 (−1 day)
15:00		21:00 (−1 day)
16:00		22:00 (−1 day)
17:00		23:00 (−1 day)
18:00		00:00
19:00		01:00
20:00		02:00
21:00		03:00
22:00		04:00
23:00		05:00

Australian tech companies and US West Coast partners face one of the widest timezone gaps in business. Atlassian (Sydney-founded, San Francisco office), Canva, and dozens of startups manage this near-opposite-clock relationship daily.

AEST is UTC+10 (AEDT UTC+11 in summer). PST is UTC−8 (PDT UTC−7 in summer). The standard gap is 18 hours: when it’s 9 AM Monday in Sydney, it’s 3 PM Sunday in San Francisco. The gap fluctuates between 17 and 19 hours across the year due to opposite-season DST.

The practical approach is to think in terms of "next-day" scheduling. A 7–8 AM AEST call is 1–2 PM PST the previous day. Alternatively, 5–6 PM AEST is 11 PM–12 AM PST — late but used for urgent syncs.

Daylight Saving Time: What Changes

Both AEST and PST observe daylight saving time. Since they typically switch on the same schedule, the 18-hour difference stays constant year-round — except during the brief transition windows when one zone has switched and the other hasn't yet. During those 1-2 weeks, the offset shifts by one hour.

Frequently Asked Questions

What is the time difference between AEST and PST?

AEST is 18 hours ahead of PST during standard time. The gap ranges from 17 to 19 hours across the year. When Australia is on AEDT and the US is on PST, it’s 19 hours. When both are on summer time (AEDT/PDT), it’s 18 hours. When Australia is on AEST and the US is on PDT, it’s 17 hours.

How does DST affect the AEST-to-PST conversion?

Both countries observe DST but in opposite seasons, so the gap swings by up to 2 hours. The narrowest gap (17 hours) occurs when Australia is on AEST (winter) and the US is on PDT (summer). The widest (19 hours) is when Australia is on AEDT and the US is on PST.

What is the best meeting time for Australia and US West Coast?

Aim for 7–9 AM AEST (1–3 PM PST the previous day) or 5–6 PM AEST (11 PM–12 AM PST). The morning AEST slot is generally preferred because it falls in the US afternoon. Most teams limit live meetings to 1–2 per week and rely on async the rest of the time.

AEST to PST Converter | Australia to US West

AEST to PST Conversion Table

Daylight Saving Time: What Changes

Frequently Asked Questions

Learn More

Your calendar + time zones, at a glance.

AEST to PST Converter | Australia to US West

AEST to PST Conversion Table

Daylight Saving Time: What Changes

Frequently Asked Questions

Related Conversions

Learn More

Your calendar + time zones, at a glance.