Offset
The time difference between Alaska Time and Australian Central Time is 17.5 hours.
Alaska Time (AKDT) is behind Australian Central Time (ACST).
AKDT: UTC-8
ACST: UTC+9:30
Alaska Time is currently observing daylight saving time; Australian Central Time is not.
When to schedule
Business-hours overlap: 4 PM–5 PM in Alaska Time (9 AM–10 AM the next day in Australian Central Time).
Both teams are in working hours during this window on weekdays.
Suggested time: 4:00 PM Alaska Time (9:30 AM Australian Central Time).
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.
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
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
About these zones
Alaska Time is also known as AKST, or AKDT. To call United States, dial +1.
Australian Central Time is also known as ACST, or ACDT. To call Australia, dial +61.
Australian Central Time is approximately 7,750 miles southwest of Alaska Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| AKST | ACST | Day |
|---|---|---|
| 12:00 am | 5:30 pm | Same day |
| 1:00 am | 6:30 pm | Same day |
| 2:00 am | 7:30 pm | Same day |
| 3:00 am | 8:30 pm | Same day |
| 4:00 am | 9:30 pm | Same day |
| 5:00 am | 10:30 pm | Same day |
| 6:00 am | 11:30 pm | Same day |
| 7:00 am | 12:30 am | +1 day |
| 8:00 am | 1:30 am | +1 day |
| 9:00 am | 2:30 am | +1 day |
| 10:00 am | 3:30 am | +1 day |
| 11:00 am | 4:30 am | +1 day |
| 12:00 pm | 5:30 am | +1 day |
| 1:00 pm | 6:30 am | +1 day |
| 2:00 pm | 7:30 am | +1 day |
| 3:00 pm | 8:30 am | +1 day |
| 4:00 pm | 9:30 am | +1 day |
| 5:00 pm | 10:30 am | +1 day |
| 6:00 pm | 11:30 am | +1 day |
| 7:00 pm | 12:30 pm | +1 day |
| 8:00 pm | 1:30 pm | +1 day |
| 9:00 pm | 2:30 pm | +1 day |
| 10:00 pm | 3:30 pm | +1 day |
| 11:00 pm | 4:30 pm | +1 day |
Daylight saving time
Both zones observe daylight saving time, but they transition on different dates.
Alaska Time: next transition on Sunday, November 1, 2026.
Australian Central Time: next transition on Sunday, October 4, 2026.
Alaska Time and Australian Central 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
- Sunrise
- 4:32 AM
- Sunset
- 11:26 PM
- Day length
- 18h 54m
- Sunrise
- 7:18 AM
- Sunset
- 5:12 PM
- Day length
- 9h 55m
Daylight overlap: 9h 38m — 1:48 PM–11:26 PM in Alaska Time (7:18 AM–4:56 PM in Australian Central Time). Both locations are in daylight during this window.
Cities in these zones
Cities in Alaska Time
Cities in Australian Central Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Alaska Time
- ANC
- MRI
Airports in Australian Central Time
- ADL
Related conversions
Common conversions
- What is 9:00 am AKST in ACST?
- 9:00 am AKST is 2:30 am ACST, the next day.
- What is 12:00 pm AKST in ACST?
- 12:00 pm AKST is 5:30 am ACST, the next day.
- What is 12:30 pm AKST in ACST?
- 12:30 pm AKST is 6:00 am ACST, the next day.
- What is 2:00 pm AKST in ACST?
- 2:00 pm AKST is 7:30 am ACST, the next day.
- What is 5:00 pm AKST in ACST?
- 5:00 pm AKST is 10:30 am ACST, the next day.
- What is 11:30 pm AKST in ACST?
- 11:30 pm AKST is 5:00 pm ACST, the next day.