The short answer

6pm in Cuba Standard Time is 11pm in Greenwich Mean Time.

Cuba Standard Time is 5 hours behind Greenwich Mean Time. It lands deep outside working hours in Greenwich Mean Time — see the best time to meet below for a friendlier slot.

Cuba Standard Time
6pm
Greenwich Mean Time
11pm
Right now
4amCDT · UTC-04:00 · Mon, Jun 22
9amBST · UTC+01:00 · Mon, Jun 22
Read across to convert
Cuba Standard Time
CDT · UTC-04:00
4am ☾
Greenwich Mean Time
BST · UTC+01:00
9am ☀
Pinned6pmCuba Standard Time=11pmGreenwich Mean Time
12amMon
5am
1am
6am
2am
7am
3am
8am
NOW
4am
9am
WORK
5am
10am
WORK
6am
11am
WORK
7am
12pm
WORK
8am
1pm
WORK
9am
WORK
2pm
WORK
10am
WORK
3pm
WORK
11am
WORK
4pm
WORK
12pm
WORK
5pm
1pm
WORK
6pm
2pm
WORK
7pm
3pm
WORK
8pm
4pm
WORK
9pm
5pm
10pm
PINNED
6pm
11pm
7pm
12amTue ·+1d
8pm
1amTue ·+1d
9pm
2amTue ·+1d
10pm
3amTue ·+1d
11pm
4amTue ·+1d
daylightnightworking hoursoverlap
Best time to meet
Best for a call
Cuba Standard Time
9am–12pm
=
Greenwich Mean Time
2pm–5pm
Popular conversions

Quick reference.

9amCuba Standard Time=2pmGreenwich Mean Time
12pmCuba Standard Time=5pmGreenwich Mean Time
3pmCuba Standard Time=8pmGreenwich Mean Time
5pmCuba Standard Time=10pmGreenwich Mean Time
9pmCuba Standard Time=2amGreenwich Mean Time · next day
In context

What each side covers.

Cuba Standard Time
CDT · UTC-04:00
4am
Cities on this clock
Greenwich Mean Time
BST · UTC+01:00
9am
Cities on this clock

Frequently asked

Quick answers about converting between Cuba Standard Time and Greenwich Mean Time. Can't find what you need? Email [email protected].

What is the time difference between Cuba Standard Time and Greenwich Mean Time?
Cuba Standard Time is 5 hours behind Greenwich Mean Time right now. We always show the live, daylight-saving-correct difference, so this figure already accounts for whichever side is observing summer time today.
When it's 6pm in Cuba Standard Time, what time is it in Greenwich Mean Time?
6pm in Cuba Standard Time is 11pm in Greenwich Mean Time. It lands deep outside working hours in Greenwich Mean Time — see the best time to meet below for a friendlier slot. Use the hour-by-hour table above to read any other time across.
What's the best time for a call between Cuba Standard Time and Greenwich Mean Time?
9am–12pm in Cuba Standard Time lines up with 2pm–5pm in Greenwich Mean Time — both sides are inside a 9-to-5 working day.
Does this account for daylight saving time?
Yes. We track every clock change in both places, so the abbreviations you see — CDT and BST — are the ones actually in effect right now, not a fixed all-year value. When either side changes its clocks, this page updates automatically.
Why is the date sometimes different on each side?
When two places are far enough apart, the same moment can fall on different calendar days. That is why some conversions are marked "previous day" or "next day" — it is the same instant in time, read off two clocks that crossed midnight at different points.