Working hours: 09:00–17:00 local. Green = both working.Purple = one side only.
Frequently Asked Questions
What is the difference between havana and mst?
HAVANA (Havana) (havana) is UTC-4 and Mountain Standard Time (mst) is UTC-6. The difference between them is 2 hours.
Where is havana used?
HAVANA (Havana) (havana) is used in Cuba and surrounding regions. The IANA timezone identifier is America/Havana.
Where is mst used?
Mountain Standard Time (mst) is used in USA and surrounding regions. The IANA timezone identifier is America/Denver.
How do I convert havana to mst?
Use the interactive converter above. Drag the time slider to any havana time and the mst equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
Havana is 2 hours ahead of MST (Denver). At noon in Havana, your contact in MST (Denver) sees 10:00.
Havana runs on America/Havana; MST (Denver) runs on America/Denver. Together they are 2 hours apart.
Business hours comparison
Havana and MST (Denver) share 6 hours of overlapping business hours daily — enough for real-time collaboration without anyone joining at odd hours.
00:0006:0012:0018:0024:00
Havana
MST (Denver)
Overlap (6h)
Best call times between these locations
There is a 6-hour daily window where both locations are in business hours. The 3 best slots are listed below.
11:00 Havana / 09:00 Denver✓ Both working
12:00 Havana / 10:00 Denver✓ Both working
13:00 Havana / 11:00 Denver✓ Both working
Working hours defined as 09:00–17:00 local time for each location.
Public holidays for both locations
⚡ Holiday alerts for both locations, double-check schedules before confirming.
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
MST (Denver)7 holidays
Jul 3Independence DaySOON
Sep 7Labour Day
Oct 12Columbus Day
Oct 12Indigenous Peoples' Day
Nov 11Veterans Day
Scheduling between Havana and MST (Denver)
Havana (Cuba) and MST (Denver) (USA) are 2 hours apart. With a 6-hour daily overlap in standard business hours, both teams can connect in real time without either side stretching beyond their normal workday.
💡 Scheduling tips for these locations
✅
If you are in Havana, aim for 11:00–12:00, which corresponds to 09:00–10:00 in MST (Denver) — both teams are within working hours.
✅
If you are in Havana, aim for 12:00–13:00, which corresponds to 10:00–11:00 in MST (Denver) — both teams are within working hours.
✅
If you are in Havana, aim for 13:00–14:00, which corresponds to 11:00–12:00 in MST (Denver) — both teams are within working hours.
Avoid scheduling mistakes — especially around daylight saving changes. Use the ClockinSync Chrome Extension to instantly verify and compare both time zones directly in your browser, without manual calculations.
Need a specific time? Use the slider or type directly into the input bar — it understands "3pm", "15:30", and location-specific formats like "9am Havana".
