Convert ACDT to HKT
HKT is 2 hours 30 minutes behind ACDT. ACDT is UTC+10:30 and HKT is UTC+8.
Right now: ACDT · HKT
Best time to schedule a meeting
Standard 9–5 working hours overlap for 5 hours: 12:00 PM–5:00 PM ACDT (9:00 AM–2:00 PM HKT). Schedule meetings inside that window.
| ACDT | HKT | Suitable? |
|---|---|---|
| 9:00 AM | 6:30 AM | outside 9–5 |
| 10:00 AM | 7:30 AM | outside 9–5 |
| 11:00 AM | 8:30 AM | outside 9–5 |
| 12:00 PM | 9:30 AM | working hours |
| 1:00 PM | 10:30 AM | working hours |
| 2:00 PM | 11:30 AM | working hours |
| 3:00 PM | 12:30 PM | working hours |
| 4:00 PM | 1:30 PM | working hours |
| 5:00 PM | 2:30 PM | working hours |
ACDT to HKT conversion table
| ACDT | HKT |
|---|---|
| 12:00 AM | 9:30 PM (previous day) |
| 1:00 AM | 10:30 PM (previous day) |
| 2:00 AM | 11:30 PM (previous day) |
| 3:00 AM | 12:30 AM |
| 4:00 AM | 1:30 AM |
| 5:00 AM | 2:30 AM |
| 6:00 AM | 3:30 AM |
| 7:00 AM | 4:30 AM |
| 8:00 AM | 5:30 AM |
| 9:00 AM | 6:30 AM |
| 10:00 AM | 7:30 AM |
| 11:00 AM | 8:30 AM |
| 12:00 PM | 9:30 AM |
| 1:00 PM | 10:30 AM |
| 2:00 PM | 11:30 AM |
| 3:00 PM | 12:30 PM |
| 4:00 PM | 1:30 PM |
| 5:00 PM | 2:30 PM |
| 6:00 PM | 3:30 PM |
| 7:00 PM | 4:30 PM |
| 8:00 PM | 5:30 PM |
| 9:00 PM | 6:30 PM |
| 10:00 PM | 7:30 PM |
| 11:00 PM | 8:30 PM |
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.
About HKT
Hong Kong Time (HKT) is UTC+8. It is used in Hong Kong, and matching mainland China and Taiwan.
Hong Kong Time is UTC+8 and has had no daylight saving since 1979. It shares its offset with mainland China, Singapore, Taiwan, Manila and Perth, which makes UTC+8 the most economically dense single offset in the world — roughly a fifth of the planet's population runs on it, and a meeting scheduled in it reaches an unusual amount of Asia at once.
Does this gap change with the seasons?
Neither ACDT nor HKT shifts with the seasons, so this 2.5-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 ACDT in HKT?
9:00 AM ACDT is 6:30 AM HKT.
Is HKT ahead of ACDT?
HKT is 2 hours 30 minutes behind ACDT.
Which time zone does this use?
ACDT is UTC+10:30 and HKT is UTC+8. 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.