Convert AKST to ACDT
ACDT is 19 hours 30 minutes ahead of AKST. AKST is UTC−9 and ACDT is UTC+10:30.
Right now: AKST · ACDT
Best time to schedule a meeting
Standard 9–5 working hours do not overlap at all between AKST and ACDT. Someone has to take an early or late call — or use asynchronous communication instead.
| AKST | ACDT | Suitable? |
|---|---|---|
| 9:00 AM | 4:30 AM (next day) | outside 9–5 |
| 10:00 AM | 5:30 AM (next day) | outside 9–5 |
| 11:00 AM | 6:30 AM (next day) | outside 9–5 |
| 12:00 PM | 7:30 AM (next day) | outside 9–5 |
| 1:00 PM | 8:30 AM (next day) | outside 9–5 |
| 2:00 PM | 9:30 AM (next day) | outside 9–5 |
| 3:00 PM | 10:30 AM (next day) | outside 9–5 |
| 4:00 PM | 11:30 AM (next day) | outside 9–5 |
| 5:00 PM | 12:30 PM (next day) | outside 9–5 |
AKST to ACDT conversion table
| AKST | ACDT |
|---|---|
| 12:00 AM | 7:30 PM |
| 1:00 AM | 8:30 PM |
| 2:00 AM | 9:30 PM |
| 3:00 AM | 10:30 PM |
| 4:00 AM | 11:30 PM |
| 5:00 AM | 12:30 AM (next day) |
| 6:00 AM | 1:30 AM (next day) |
| 7:00 AM | 2:30 AM (next day) |
| 8:00 AM | 3:30 AM (next day) |
| 9:00 AM | 4:30 AM (next day) |
| 10:00 AM | 5:30 AM (next day) |
| 11:00 AM | 6:30 AM (next day) |
| 12:00 PM | 7:30 AM (next day) |
| 1:00 PM | 8:30 AM (next day) |
| 2:00 PM | 9:30 AM (next day) |
| 3:00 PM | 10:30 AM (next day) |
| 4:00 PM | 11:30 AM (next day) |
| 5:00 PM | 12:30 PM (next day) |
| 6:00 PM | 1:30 PM (next day) |
| 7:00 PM | 2:30 PM (next day) |
| 8:00 PM | 3:30 PM (next day) |
| 9:00 PM | 4:30 PM (next day) |
| 10:00 PM | 5:30 PM (next day) |
| 11:00 PM | 6:30 PM (next day) |
About AKST
Alaska Standard Time (AKST) is UTC−9. It is used in Anchorage and the rest of Alaska in winter.
Alaska Standard Time is UTC−9, one hour behind Pacific Standard Time. Alaska observes daylight saving on the US schedule, moving to AKDT at UTC−8 in summer. The state is wide enough to span four time zones geographically and chooses to run on one for practical reasons, which is why the sun can rise at very different clock times at either end of it.
About ACDT
Australian Central Daylight Time (ACDT) is UTC+10:30. It is used in Adelaide in summer.
Australian Central Daylight Time is UTC+10:30, what South Australia keeps from October to April. Darwin stays on ACST through the summer, so for those months two cities in the same nominal zone are an hour apart — the only reason to be precise about which of the two abbreviations a meeting invitation carries.
Does this gap change with the seasons?
Neither AKST nor ACDT shifts with the seasons, so this 19.5-hour difference holds all year. That is unusual enough to be worth relying on: most cross-continental gaps move twice a year.
This is the reason scheduling systems store an IANA zone such as Region/City rather than an offset or an abbreviation: the zone knows its own rules and the offset does not.
Frequently asked questions
What time is 9:00 AM AKST in ACDT?
9:00 AM AKST is 4:30 AM ACDT (next day).
Is ACDT ahead of AKST?
ACDT is 19 hours 30 minutes ahead of AKST.
Which time zone does this use?
AKST is UTC−9 and ACDT is UTC+10:30. Both abbreviations denote a single fixed offset, so this conversion never shifts with daylight saving — what changes is which abbreviation a place is using at the time.