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Convert Pacific Standard Time to Australian Central Standard Time

Instantly convert Pacific Standard Time (PST) to Australian Central Standard Time (ACST) with our free online calculator.

Reviewed by Christopher FloiedUpdated

Pacific Standard Time

09:20:51 PM

Tue, Jun 23 (PST)

Australian Central Standard Time

02:50:51 PM

Wed, Jun 24 (ACST)

ACST is +17.5 hours from PST

Convert a Specific Time

PST

24-Hour Comparison

PSTACST
12:00 AM5.5:00 PM
1:00 AM6.5:00 PM
2:00 AM7.5:00 PM
3:00 AM8.5:00 PM
4:00 AM9.5:00 PM
5:00 AM10.5:00 PM
6:00 AM11.5:00 PM
7:00 AM0.5:00 AM(+1d)
8:00 AM1.5:00 AM(+1d)
9:00 AM2.5:00 AM(+1d)
10:00 AM3.5:00 AM(+1d)
11:00 AM4.5:00 AM(+1d)
12:00 PM5.5:00 AM(+1d)
1:00 PM6.5:00 AM(+1d)
2:00 PM7.5:00 AM(+1d)
3:00 PM8.5:00 AM(+1d)
4:00 PM9.5:00 AM(+1d)
5:00 PM10.5:00 AM(+1d)
6:00 PM11.5:00 AM(+1d)
7:00 PM0.5:00 PM(+1d)
8:00 PM1.5:00 PM(+1d)
9:00 PM2.5:00 PM(+1d)
10:00 PM3.5:00 PM(+1d)
11:00 PM4.5:00 PM(+1d)

How to Convert Pacific Standard Time to Australian Central Standard Time

Formula

To convert Pacific Standard Time (PST) to Australian Central Standard Time (ACST): Convert PST to ACST

About Pacific Standard Time (PST)

Pacific Standard Time (PST, IANA: America/Los_Angeles) is the standard time zone for the US West Coast and Canadian westernmost provinces, set at UTC-8:00. PST is observed from the first Sunday in November to the second Sunday in March per the Uniform Time Act of 1966; the region switches to Pacific Daylight Time (PDT = UTC-7:00) the rest of the year. PST is used by ~50 million people in California, Oregon, Washington, Nevada (most), British Columbia, Yukon Territory, and the Mexican states of Baja California Norte. Major cities: Los Angeles, San Francisco, San Diego, Seattle, Portland, Sacramento, Las Vegas, Vancouver BC. PST is the time zone of US tech hubs (Silicon Valley, Seattle, Vancouver) — global software-release coordination, Big-Tech corporate-earnings calls, Hollywood production schedules, and NYSE/Nasdaq market hours (PST 06:30-13:00) all reference PST/PDT. Mexico abolished DST nationwide in 2022 except for border zones, complicating Baja conversions.

About Australian Central Standard Time (ACST)

Australian Central Standard Time (ACST, IANA: Australia/Adelaide, Australia/Darwin) is the civil time of South Australia (SA) + Northern Territory (NT) + Broken Hill area of New South Wales, set at UTC+9:30 — one of the few 30-minute-offset time zones in the developed world. South Australia observes Daylight Saving Time per state legislation (switching to ACDT = UTC+10:30) from the first Sunday of October to the first Sunday of April, while Northern Territory does NOT observe DST (stays on ACST year-round). The 30-minute offset is preserved because central Australia's longitudinal position (135°E) falls between Australian Western Standard Time (AWST = UTC+8) and Australian Eastern Standard Time (AEST = UTC+10), and the colonial-era decision was to split the difference. ACST serves approximately 1.9 million Australians: 1.7M in SA + 250K in NT + 20K in Broken Hill NSW. Major ACST cities: Adelaide (1.4M metro — South Australia capital), Darwin (150K — Northern Territory capital and the gateway to Asia from northern Australia), Alice Springs (25K — center of Australian Outback tourism + Uluru-Kata Tjuta National Park access), Mount Gambier (30K), Whyalla (22K), Broken Hill NSW (18K). Affects: ASX-South-Australian-listed mining-company operations, Darwin port shipping to Indonesia + Timor-Leste.

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