No overlap — one side will join outside working hours
HAVANA (Havana)
HKT (Hong Kong)
00:00
12:00Working
01:00
13:00Working
02:00
14:00Working
03:00
15:00Working
04:00
16:00Working
05:00
17:00
06:00
18:00
07:00
19:00
08:00
20:00
09:00Working
21:00off
10:00Working
22:00off
11:00Working
23:00off
12:00Working
00:00+1doff
13:00Working
01:00+1doff
14:00Working
02:00+1doff
15:00Working
03:00+1doff
16:00Working
04:00+1doff
17:00
05:00+1d
18:00
06:00+1d
19:00
07:00+1d
20:00
08:00+1d
21:00
09:00+1dWorking
22:00
10:00+1dWorking
23:00
11:00+1dWorking
Working hours: 09:00–17:00 local. Green = both working.Purple = one side only.
Frequently Asked Questions
What is the difference between havana and hkt?
HAVANA (Havana) (havana) is UTC-4 and Hong Kong Time (hkt) is UTC+8. The difference between them is 12 hours.
Where is havana used?
HAVANA (Havana) (havana) is used in Cuba and surrounding regions. The IANA timezone identifier is America/Havana.
Where is hkt used?
Hong Kong Time (hkt) is used in Hong Kong and surrounding regions. The IANA timezone identifier is Asia/Hong_Kong.
How do I convert havana to hkt?
Use the interactive converter above. Drag the time slider to any havana time and the hkt equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
Havana is 12 hours behind HKT (Hong Kong). Midday in Havana lines up with 00:00 in HKT (Hong Kong).
Havana observes America/Havana and HKT (Hong Kong) observes Asia/Hong_Kong — a 12 hours gap between them.
Daily overlap window
When Havana is in standard working hours, HKT (Hong Kong) is not — and vice versa. There is no mutual business window between these two locations.
Optimal meeting slots
No business hours overlap exists between Havana and HKT (Hong Kong). Showing the most balanced options with minimal inconvenience for both locations.
04:00 Havana / 16:00 Hong Kong⚡ One side off-hours
⚠️ 5h before working hours in Havana
09:00 Havana / 21:00 Hong Kong⚡ One side off-hours
⚠️ 5h after working hours in Hong Kong
16:00 Havana / 04:00 Hong Kong⚡ One side off-hours
⚠️ 5h before working hours in Hong Kong
Assumes a standard 9 AM–5 PM workday in each location's local timezone.
Upcoming public holidays
⚡ Watch out — upcoming holidays on both sides. Verify availability in advance.
Havana5 holidays
Jul 25Day before the Commemoration of the Assault of the Moncada garrison
Jul 26Commemoration of the Assault of the Moncada garrison
Jul 27Day after the Commemoration of the Assault of the Moncada garrison
Oct 10Independence Day
Dec 25Christmas Day
HKT (Hong Kong)6 holidays
Jul 1Hong Kong Special Administrative Region Establishment DaySOON
Sep 26Day following the Mid-Autumn Festival
Oct 1National Day
Oct 19Chung Yeung Festival
Dec 25Christmas Day
How to work with Havana and HKT (Hong Kong) time zones
Coordinating between Havana (Cuba) and HKT (Hong Kong) (Hong Kong) means working around a 12-hour time difference. Since standard business hours don't naturally overlap, meetings usually require one side to shift slightly outside their normal working day.
💡 How to schedule across these time zones
⚡
04:00–05:00 in Havana corresponds to 16:00–17:00 in HKT (Hong Kong) (5h before working hours in Havana).
⚡
09:00–10:00 in Havana corresponds to 21:00–22:00 in HKT (Hong Kong) (5h after working hours in Hong Kong).
⚡
16:00–17:00 in Havana corresponds to 04:00–05:00 in HKT (Hong Kong) (5h before working hours in Hong Kong).
Since there is no natural overlap, the options above represent the most balanced compromise, minimizing out-of-hours inconvenience for both sides.
Recurring meetings are particularly vulnerable to DST shifts. The ClockinSync Chrome Extension alerts you before the offset changes.
Drag the slider at the top to convert any Havana time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.
