ACST PSTTime Converter
ACST (UTC+9:30) is currently 17 hours 30 minutes ahead of PST (UTC−8). Compare live clocks, convert any hour, and find times to meet.
Best time to meet between ACST and PST
Best meeting times:
ACST: 9:00 AM – 12:00 PM
PST: 3:30 PM – 6:30 PM
Quick answer
When it's in ACST, it's the previous day in PST.
ACST runs 17 hours 30 minutes ahead of PST. Both sides keep standard office hours with a real 9–6 overlap: the highlighted window above works for everyone.
- Time difference
- −17h 30m
- ACST
- UTC+9:30
- PST
- UTC−8
- Best call window
- 9:00 AM ACST
ACST to PST conversion table
The next 12 hours in ACST and the matching local time in PST. The current hour is highlighted; drag the converter's slider and the table follows.
| ACST | PST |
|---|---|
| NOW Fri, Aug 7 |
Thu, Aug 6 |
Fri, Aug 7 |
Thu, Aug 6 |
Fri, Aug 7 |
Thu, Aug 6 |
Fri, Aug 7 |
Thu, Aug 6 |
Fri, Aug 7 |
Thu, Aug 6 |
Fri, Aug 7 |
Thu, Aug 6 |
Fri, Aug 7 |
Thu, Aug 6 |
Fri, Aug 7 |
Thu, Aug 6 |
Fri, Aug 7 |
Thu, Aug 6 |
Fri, Aug 7 |
Thu, Aug 6 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Daylight saving shifts this gap by up to 2 hours
The difference between ACST and PST swings between 18.5, 17.5 and 16.5 hours across the year as each side starts or ends daylight saving. Regions on ACST switch to ACDT (UTC+10:30) during daylight saving time. Regions on PST switch to PDT (UTC−7) during daylight saving time. This page always shows the live, DST-aware difference.
Related time zone conversions
Jump straight to another pair: every combination is a live tool, not an article.
From ACST
To PST
One source of truth, for you and your AI
This page exposes the same answer as structured data, so when you ask an assistant "what's 9am ACST time in PST?", it can cite the exact, DST-aware result, not a stale blog post.
- Schema.org JSON-LD on every converter page
- A machine-readable facts island with time zone identifiers and every possible offset
- Live times in <time datetime> elements with explicit UTC offsets
{
"pair": "ACST → PST",
"url": "https://worldclock.pro/en/convert/acst-to-pst",
"from": {
"name": "ACST",
"type": "timezone",
"abbreviation": "ACST",
"daylightAbbreviation": "ACDT",
"iana": "Australia/Adelaide",
"standardUtcOffset": "+09:30",
"daylightUtcOffset": "+10:30",
"referenceCity": "Adelaide"
},
"to": {
"name": "PST",
"type": "timezone",
"abbreviation": "PST",
"daylightAbbreviation": "PDT",
"iana": "America/Los_Angeles",
"standardUtcOffset": "-08:00",
"daylightUtcOffset": "-07:00",
"referenceCity": "Los Angeles"
},
"currentDifferenceMinutes": -1050,
"possibleDifferencesMinutes": [
-1110,
-1050,
-990
],
"note": "Between the regions that use these zones the difference is 18.5, 17.5 and 16.5 hours across the year, depending on daylight saving on each side. The clocks on this page show the named zones themselves, which are fixed."
}
Frequently asked questions
What is the time difference between ACST and PST?
ACST is currently 17 hours 30 minutes ahead of PST. ACST is on ACST (UTC+9:30) and PST is on PST (UTC−8). The difference can change when either side starts or ends daylight saving time.
Is PST ahead of or behind ACST?
PST is currently 17 hours 30 minutes behind ACST.
When it is 9:00 AM in ACST, what time is it in PST?
When it is 9:00 AM on a Friday in ACST, it is 3:30 PM the previous day in PST.
Do ACST and PST observe daylight saving time?
Regions on ACST switch to ACDT (UTC+10:30) during daylight saving time. Regions on PST switch to PDT (UTC−7) during daylight saving time.
How do I convert ACST time to PST time?
Subtract 17 hours 30 minutes from any time in ACST to get the time in PST. This page's converter and 24-hour table do it automatically and stay correct through daylight-saving changes.
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