The short answer

Korea Standard Time is 13 hours ahead of Havana.

Korea Standard Time
3:38:40pm
KST · UTC+09:00 · Mon, Jun 22
Havana
2:38:40am
CDT · UTC-04:00 · Mon, Jun 22
Read across to convert
Korea Standard Time
KST · UTC+09:00
3:38pm ☀
Havana
CDT · UTC-04:00
2:38am ☾
Click any row to pin that hour across both zones.
12amMon
11amSun ·−1d
WORK
1am
12pmSun ·−1d
WORK
2am
1pmSun ·−1d
WORK
3am
2pmSun ·−1d
WORK
4am
3pmSun ·−1d
WORK
5am
4pmSun ·−1d
WORK
6am
5pmSun ·−1d
7am
6pmSun ·−1d
8am
7pmSun ·−1d
9am
WORK
8pmSun ·−1d
10am
WORK
9pmSun ·−1d
11am
WORK
10pmSun ·−1d
12pm
WORK
11pmSun ·−1d
1pm
WORK
12amMon
2pm
WORK
1am
NOW
3pm
WORK
2am
4pm
WORK
3am
5pm
4am
6pm
5am
7pm
6am
8pm
7am
9pm
8am
10pm
9am
WORK
11pm
10am
WORK
daylightnightworking hoursoverlap
Best time to meet
Closest workable window
Just outside the working window — early on one side, late on the other.
Korea Standard Time
7am–8am
=
Havana
6pm–7pm
previous day
Popular conversions

Quick reference.

9amKorea Standard Time=8pmHavana · prev day
12pmKorea Standard Time=11pmHavana · prev day
3pmKorea Standard Time=2amHavana
5pmKorea Standard Time=4amHavana
9pmKorea Standard Time=8amHavana
In context

What each side covers.

Korea Standard Time
KST · UTC+09:00
3:38pm
Cities on this clock
Havana
CDT · UTC-04:00
2:38am
Cities on this clock

Frequently asked

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

What is the time difference between Korea Standard Time and Havana?
Korea Standard Time is 13 hours ahead of Havana 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 9am in Korea Standard Time, what time is it in Havana?
9am in Korea Standard Time is 8pm in Havana on the previous day. Use the hour-by-hour table above to read any other time across — find the row and read the matching cell in the other column.
What's the best time for a call between Korea Standard Time and Havana?
There's no comfortable 9-to-5 overlap between Korea Standard Time and Havana — they sit on opposite sides of the planet's working day. Plan for an early or late call on one side, or hand work off asynchronously.
Does this account for daylight saving time?
Yes. We track every clock change in both places, so the abbreviations you see — KST and CDT — 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.