4 AM KST to UTC

Korea Standard Time → Coordinated Universal Time

Outside business hours

KST

4 AM

UTC+9

=

UTC

7 PM

UTC+0

(-1 day)

4 AM KST (Korea Standard Time) equals 7 PM UTC (previous day) (Coordinated Universal Time). This falls outside typical business hours for one or both regions.

Live — KST

20:45:52

Saturday, March 21

UTC+9

Live — UTC

11:45:52

Saturday, March 21

UTC+0

KST

Full name
Korea Standard Time
UTC offset
UTC+9
DST
Not observed
Region
East Asia
Current time in KST →

UTC

Full name
Coordinated Universal Time
UTC offset
UTC+0
DST
Not observed
Region
Global
Current time in UTC →

24-Hour Comparison — KST to UTC

Click any row to jump to that hour's page.

12 AM6 AM12 PM6 PM11 PM
KSTUTCDayMeeting
12 AM
3 PM
-1d
Early/Late
1 AM
4 PM
-1d
Early/Late
2 AM
5 PM
-1d
Early/Late
3 AM
6 PM
-1d
Early/Late
4 AMthis
7 PM
-1d
Off hours
5 AM
8 PM
-1d
Off hours
6 AM
9 PM
-1d
Off hours
7 AM
10 PM
-1d
Off hours
8 AM
11 PM
-1d
Early/Late
9 AM
12 AM
–
Early/Late
10 AM
1 AM
–
Early/Late
11 AM
2 AM
–
Early/Late
12 PM
3 AM
–
Early/Late
1 PM
4 AM
–
Early/Late
2 PM
5 AM
–
Early/Late
3 PM
6 AM
–
Early/Late
4 PM
7 AM
–
Early/Late
5 PM
8 AM
–
Good
6 PM
9 AM
–
Good
7 PM
10 AM
–
Early/Late
8 PM
11 AM
–
Early/Late
9 PM
12 PM
–
Early/Late
10 PM
1 PM
–
Early/Late
11 PM
2 PM
–
Early/Late

Green = business hours overlap · Amber = partial · Red = off hours

Previous

3 AM

= 6 PM UTC

Next

5 AM

= 8 PM UTC

KST ↔ UTC Overview

Full 24-hour chart, live clocks, FAQ

View hub

Major Cities

KST Cities

🇰🇷Seoul

UTC Cities

🇬🇧London🇵🇹Lisbon🇮🇪Dublin