Observatory log
Hong Kong and Woomera, compared
- 01Difference now
Woomera is 2 hours 30 minutes ahead of Hong Kong.
Hong Kong: HKT (UTC+8) · Woomera: ACDT (UTC+10:30)
Next changeFrom 4 April 2027: Woomera is 1 hour 30 minutes ahead of Hong Kong.
- 02Through 2026–2027
- 1 January 2026 – 5 April 2026+2 h 30 min
- 5 April 2026 – 4 October 2026+1 h 30 min
- 4 October 2026 – 4 April 2027+2 h 30 min
- 4 April 2027 – 3 October 2027+1 h 30 min
- 3 October 2027 – 31 December 2027+2 h 30 min
Difference of Woomera from Hong Kong. It changes on the days either place changes its clocks (dates local to that place).
- 03Shared working hours
- Mon–Fri: 09:00–14:30 in Hong Kong = 11:30–17:00 in Woomera · 5 h 30 min
Counted as 09:00–17:00 local time on each place’s own working days, for the next seven days.
- 04Best time to meet
09:00–14:30 in Hong Kong = 11:30–17:00 in Woomera
Inside both working days (Mon–Fri).
- 05Weekend
Hong Kong: Saturday and Sunday
Woomera: Saturday and Sunday
24 hours
A day in Hong Kong, in Woomera
| Hong Kong | Woomera | Working hours, evening, night or weekend in each place |
|---|---|---|
| 00:00 | 02:30 | |
| 01:00 | 03:30 | |
| 02:00 | 04:30 | |
| 03:00 | 05:30 | |
| 04:00 | 06:30 | |
| 05:00 | 07:30 | |
| 06:00 | 08:30 | |
| 07:00 | 09:30 | |
| 08:00 | 10:30 | |
| 09:00 | 11:30 | |
| 10:00 | 12:30 | |
| 11:00 | 13:30 | |
| 12:00 | 14:30 | |
| 13:00 | 15:30 | |
| 14:00 | 16:30 | |
| 15:00 | 17:30 | |
| 16:00 | 18:30 | |
| 17:00 | 19:30 | |
| 18:00 | 20:30 | |
| 19:00 | 21:30 | |
| 20:00 | 22:30 | |
| 21:00 | 23:30 | |
| 22:00 | 00:30Tomorrow | |
| 23:00 | 01:30Tomorrow |
Working hoursEarly or eveningNightWeekend
Questions
Asked about Hong Kong and Woomera
What is the time difference between Hong Kong and Woomera?
Woomera is 2 hours 30 minutes ahead of Hong Kong. This holds until 4 April 2027; then Woomera is 1 hour 30 minutes ahead of Hong Kong.
What is the best time for a call between Hong Kong and Woomera?
Inside both working days: Mon–Fri: 09:00–14:30 in Hong Kong = 11:30–17:00 in Woomera · 5 h 30 min.
When does the time difference between Hong Kong and Woomera change?
In the next 12 months it changes on: 4 April 2027 (+1 h 30 min); 3 October 2027 (+2 h 30 min).