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London to Havana Time

GMT to CST Converter — 9 AM GMT is 4:00 AM CST

London is 5 hours ahead of Havana. Convert any time between London (GMT/BST) and Havana (CST/CDT) instantly.

London

United Kingdom

GMT/BST
UTC+0 · GMT/BST

Havana

Cuba

CST/CDT
UTC-5 · CST/CDT
London is 5 hours ahead of Havana.

Add Time Zones to Compare

London(UTC+0)
Havana(UTC-5)

Time Zone Comparison

London
12:00 PM
United Kingdom · GMT/BST
12:00 PM
12amNight
1amNight
2amNight
3amNight
4amNight
5amNight
6amNight
7amNight
8amNight
9amWorking hours
10amWorking hours
11amWorking hours
12pmWorking hours
1pmWorking hours
2pmWorking hours
3pmWorking hours
4pmWorking hours
5pmEvening
6pmEvening
7pmEvening
8pmEvening
9pmNight
10pmNight
11pmNight
Havana
7:00 AM
Cuba · CST/CDT
7:00 AM
7pmEvening
8pmEvening
9pmNight
10pmNight
11pmNight
12amNight
1amNight
2amNight
3amNight
4amNight
5amNight
6amNight
7amNight
8amNight
9amWorking hours
10amWorking hours
11amWorking hours
12pmWorking hours
1pmWorking hours
2pmWorking hours
3pmWorking hours
4pmWorking hours
5pmEvening
6pmEvening
Working
Evening
Night
Now
Selected Time
Minutes:
London12:00 PM
Havana7:00 AM

London to Havana Time Conversion Table

London (GMT)Havana (CST)
12:00 AM7:00 PM
2:00 AM9:00 PM
4:00 AM11:00 PM
6:00 AM1:00 AM
8:00 AM3:00 AM
10:00 AM5:00 AM
12:00 PM7:00 AM
2:00 PM9:00 AM
4:00 PM11:00 AM
6:00 PM1:00 PM
8:00 PM3:00 PM
10:00 PM5:00 PM
Working hours (9 AM - 5 PM)
Evening (5 PM - 9 PM)
Night

London & Havana — Business & Scheduling Guide

London is a global financial capital and cultural powerhouse, known for banking (City of London), fintech, insurance (Lloyd's), media, and tech startups. Havana (Cuba) is a Caribbean economy undergoing gradual economic opening, known for tourism, biotechnology, agriculture (sugar, tobacco), and nickel. With a 5-hour time difference, professionals frequently schedule cross-border calls between these two cities for international trade, remote team collaboration, and client meetings.

Scheduling Meetings Between London and Havana

The 5-hour difference between London and Havana requires careful scheduling. The best overlap window is typically 2–4 hours when both cities are within working hours. British business culture values politeness and punctuality, with typical hours of 9 AM–5:30 PM. Cuban business hours are typically 8 AM–5 PM, with a well-educated workforce and growing private sector. Teams often designate specific "overlap hours" for real-time collaboration and use asynchronous communication (Slack, email, recorded video) for the rest of the day.

Daylight Saving Time Considerations

Both London and Havana observe Daylight Saving Time. London uses GMT/BST (switching between standard and daylight time), while Havana uses CST/CDT. If their DST transitions happen on different dates — which is common, as the US, EU, and other regions change clocks on different weekends — the effective time difference between the two cities can shift by 1 hour for several weeks. Always double-check the actual offset during March–April and October–November.

Collaboration Tools & Workflow

The 5-hour gap between London and Havana means teams get roughly half a day of overlapping work hours. Successful cross-timezone teams typically batch synchronous activities (standups, reviews, planning) into the overlap window and reserve solo deep work for non-overlapping hours. Tools like Loom for async video updates, Slack with status indicators showing each team's local time, and shared Notion docs help bridge the gap. Many teams adopt a "follow-the-sun" workflow where handoffs happen at the edges of each team's workday.

Remote Work Between London & Havana

London, banking (City of London), and Havana, a key city in Cuba, represent a common corridor for distributed teams navigating a 5-hour time difference. Remote workers and freelancers operating between these cities should plan their day around the overlap window — typically the late morning for one city and early morning or late afternoon for the other. Using a world clock widget, setting Slack status with local time, and blocking "no-meeting" deep work hours outside the overlap are essential practices for productive cross-timezone remote collaboration between London and Havana.

GMT to CST — Quick Reference

GMT (GMT/BST) stands for the timezone used in London, United Kingdom (UTC+0). CST (CST/CDT) is the timezone used in Havana, Cuba (UTC-5). London is 5 hours ahead of Havana.

To convert GMT to CST, subtract 5 hours from GMT time. For example, GMT 9:00 AM = CST 4:00 AM.

Key Facts

  • Time difference: London (UTC+0) is 5 hours ahead of Havana (UTC-5).
  • Daylight Saving Time: London observes DST (GMT/BST). Havana observes DST (CST/CDT).
  • Regions: London is located in United Kingdom and uses the GMT/BST time zone. Havana is located in Cuba and uses the CST/CDT time zone.
  • Best time to call: The best time to call between London and Havana is 2:00 PM to 4:00 PM in London time, when both cities have overlapping standard working hours.

Frequently Asked Questions

What is the time difference between London and Havana?

London is 5 hours ahead of Havana.

What time is it in Havana when it's 9 AM in London?

When it's 9:00 AM in London, it is 4:00 AM in Havana.

What time is 9 PM GMT in CST?

9 PM GMT (London time) is 4:00 PM CST (Havana time). This is a common time people check when scheduling evening calls across these two time zones.

When is the best time to schedule a meeting between London and Havana?

The best time to schedule a meeting is between 2:00 PM to 4:00 PM in London time, when both cities are within standard working hours (9 AM – 5 PM). This gives you the maximum overlap window for real-time collaboration.

How do I convert GMT to CST?

GMT (GMT/BST) is the timezone for London, United Kingdom (UTC+0). CST (CST/CDT) is the timezone for Havana, Cuba (UTC-5). London is 5 hours ahead of Havana. Quick examples: 9 AM GMT = 4:00 AM CST, 12 PM GMT = 7:00 AM CST, 3 PM GMT = 10:00 AM CST, 6 PM GMT = 1:00 PM CST.

Is London ahead of or behind Havana?

London is 5 hours ahead of Havana. When it's noon in London, it's 7:00 AM in Havana.

Does London or Havana change clocks for Daylight Saving Time?

Yes, London observes DST and switches between GMT/BST. Havana observes DST and switches between CST/CDT.

What time is noon in London in Havana time?

When it is 12:00 PM (noon) in London (GMT), it is 7:00 AM in Havana (CST). This is often a popular time for scheduling lunch-hour calls across the London–Havana corridor.

What are the overlapping work hours between London and Havana?

The overlapping work hours between London and Havana are approximately 2:00 PM to 4:00 PM in London time, when both cities are within the standard 9 AM–5 PM workday. This is the ideal window for meetings, pair programming, and real-time collaboration.

What timezone is London in?

London is in the GMT/BST time zone (UTC+0). It is located in United Kingdom. London observes Daylight Saving Time, switching between GMT/BST.

What timezone is Havana in?

Havana is in the CST/CDT time zone (UTC-5). It is located in Cuba. Havana observes Daylight Saving Time, switching between CST/CDT.

How do I schedule a call between London and Havana?

To schedule a call between London and Havana, aim for the overlapping window of 2:00 PM to 4:00 PM in London time. Use Google Calendar or Calendly with both time zones visible, share the meeting invite with the CST time clearly noted, and always double-check the time difference — especially during DST transitions. Pro tip: include both local times in the calendar invite title (e.g., "Sync — 10 AM GMT / 5:00 AM CST").

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