World Timezones

ACST to PST Converter

Compare PST to ACST instead
Australian Central Time2:06 pmFri, Jun 5
Australian Central TimeACST
Oceania · UTC+9:30
2:06 pmFri, Jun 5
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
Pacific TimePDT
North America · UTC-7
9:36 pmThu, Jun 4
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
12a
1a
2a
3a
4a
5a
6a

Offset

The time difference between Australian Central Time and Pacific Time is 16.5 hours.

16.5 hours

Australian Central Time (ACST) is ahead of Pacific Time (PDT).

ACST: UTC+9:30

PDT: UTC-7

Pacific Time is currently observing daylight saving time; Australian Central Time is not.

When to schedule

Standard business hours (9 AM–5 PM, Mon–Fri) in Australian Central Time and Pacific Time don't overlap on the same weekday. Pacific Time is 16 hours behind Australian Central Time.

Realistic options: hand off asynchronously, or stretch one side by an hour to catch the other team at the start or end of their day.

This window may shift by an hour during daylight saving time.

Public holidays in 2026

National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.

Australia

  • New Year's DayThu, Jan 1
  • Australia DayMon, Jan 26
  • Good FridayFri, Apr 3
  • Easter MondayMon, Apr 6
  • Christmas DayFri, Dec 25
  • St. Stephen's DayMon, Dec 28

United States

  • New Year's DayThu, Jan 1
  • Martin Luther King, Jr. DayMon, Jan 19
  • Presidents DayMon, Feb 16
  • Memorial DayMon, May 25
  • Juneteenth National Independence DayFri, Jun 19
  • Independence DayFri, Jul 3
  • Labour DayMon, Sep 7
  • Columbus DayMon, Oct 12
  • Veterans DayWed, Nov 11
  • Thanksgiving DayThu, Nov 26
  • Christmas DayFri, Dec 25

About these zones

Australian Central Time is also known as ACST, or ACDT. To call Australia, dial +61.

Pacific Time is also known as PST, or PDT. To call United States, dial +1.

Pacific Time is approximately 8,200 miles northeast of Australian Central Time.

Quick reference

Full 24-hour conversion table — tap any time to open it in the converter.

ACSTPSTDay
12:00 am7:30 am-1 day
1:00 am8:30 am-1 day
2:00 am9:30 am-1 day
3:00 am10:30 am-1 day
4:00 am11:30 am-1 day
5:00 am12:30 pm-1 day
6:00 am1:30 pm-1 day
7:00 am2:30 pm-1 day
8:00 am3:30 pm-1 day
9:00 am4:30 pm-1 day
10:00 am5:30 pm-1 day
11:00 am6:30 pm-1 day
12:00 pm7:30 pm-1 day
1:00 pm8:30 pm-1 day
2:00 pm9:30 pm-1 day
3:00 pm10:30 pm-1 day
4:00 pm11:30 pm-1 day
5:00 pm12:30 amSame day
6:00 pm1:30 amSame day
7:00 pm2:30 amSame day
8:00 pm3:30 amSame day
9:00 pm4:30 amSame day
10:00 pm5:30 amSame day
11:00 pm6:30 amSame day

Daylight saving time

Both zones observe daylight saving time, but they transition on different dates.

Australian Central Time: next transition on Sunday, October 4, 2026.

Pacific Time: next transition on Sunday, November 1, 2026.

Australian Central Time and Pacific Time are in opposite hemispheres, so their clocks change in opposite directions about six months apart — one springs forward while the other falls back. The offset between them therefore shifts twice a year and can swing by up to two hours across the seasons, more than a typical same-hemisphere pair. Recurring meetings will need re-checking after each transition.

See the daylight saving time page for transition dates across every time zone.

Daylight today

Australian Central Time
Sunrise
7:18 AM
Sunset
5:12 PM
Day length
9h 55m
Pacific Time
Sunrise
5:43 AM
Sunset
8:02 PM
Day length
14h 19m

Daylight overlap: 5h 14m7:18 AM–12:32 PM in Australian Central Time (2:48 PM–8:02 PM in Pacific Time). Both locations are in daylight during this window.

Cities in these zones

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in Australian Central Time

  • ADL

Airports in Pacific Time

  • BUR
  • HHR
  • LAX
  • LGB
  • SNA
  • CLD
  • SAN
  • TIJ
  • OAK
  • SFO

Related conversions

Common conversions

What is 9:00 am ACST in PST?
9:00 am ACST is 4:30 pm PST, the previous day.
What is 12:00 pm ACST in PST?
12:00 pm ACST is 7:30 pm PST, the previous day.
What is 12:30 pm ACST in PST?
12:30 pm ACST is 8:00 pm PST, the previous day.
What is 2:00 pm ACST in PST?
2:00 pm ACST is 9:30 pm PST, the previous day.
What is 5:00 pm ACST in PST?
5:00 pm ACST is 12:30 am PST.
What is 11:30 pm ACST in PST?
11:30 pm ACST is 7:00 am PST.