Observatory log
Hong Kong and Castro, compared
- 01Difference now
Castro is 11 hours behind Hong Kong.
Hong Kong: HKT (UTC+8) · Castro: UTC−3 (UTC−3)
- 02Through 2026–2027
The difference stays the same all year.
- 1 January 2026 – 31 December 2027−11 h
Difference of Castro from Hong Kong. It changes on the days either place changes its clocks (dates local to that place).
- 03Shared working hours
Their working days never overlap.
Counted as 09:00–17:00 local time on each place’s own working days, for the next seven days.
- 04Best time to meet
20:00–22:00 in Hong Kong = 09:00–11:00 in Castro
No shared office hours: this is early or late for one side (Mon–Fri).
- 05Weekend
Hong Kong: Saturday and Sunday
Castro: Saturday and Sunday
24 hours
A day in Hong Kong, in Castro
| Hong Kong | Castro | Working hours, evening, night or weekend in each place |
|---|---|---|
| 00:00 | 13:00Yesterday | |
| 01:00 | 14:00Yesterday | |
| 02:00 | 15:00Yesterday | |
| 03:00 | 16:00Yesterday | |
| 04:00 | 17:00Yesterday | |
| 05:00 | 18:00Yesterday | |
| 06:00 | 19:00Yesterday | |
| 07:00 | 20:00Yesterday | |
| 08:00 | 21:00Yesterday | |
| 09:00 | 22:00Yesterday | |
| 10:00 | 23:00Yesterday | |
| 11:00 | 00:00 | |
| 12:00 | 01:00 | |
| 13:00 | 02:00 | |
| 14:00 | 03:00 | |
| 15:00 | 04:00 | |
| 16:00 | 05:00 | |
| 17:00 | 06:00 | |
| 18:00 | 07:00 | |
| 19:00 | 08:00 | |
| 20:00 | 09:00 | |
| 21:00 | 10:00 | |
| 22:00 | 11:00 | |
| 23:00 | 12:00 |
Working hoursEarly or eveningNightWeekend
Questions
Asked about Hong Kong and Castro
What is the time difference between Hong Kong and Castro?
Castro is 11 hours behind Hong Kong. The difference stays the same all year.
What is the best time for a call between Hong Kong and Castro?
No shared office hours. The least awkward windows, early or late for one side: Mon–Fri: 20:00–22:00 in Hong Kong = 09:00–11:00 in Castro · 2 h.
When does the time difference between Hong Kong and Castro change?
It does not change in the next 12 months: Hong Kong and Castro either keep the same time all year or change their clocks on the same dates.