Offset
The time difference between Coordinated Universal Time and Korea Standard Time is 9 hours.
Coordinated Universal Time (UTC) is behind Korea Standard Time (KST).
UTC: UTC
KST: UTC+9
Neither Coordinated Universal Time nor Korea Standard Time is currently observing daylight saving time.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Coordinated Universal Time and Korea Standard Time don't overlap on the same weekday. Korea Standard Time is 9 hours ahead of Coordinated Universal Time.
With some flexibility, there’s a workable window outside standard hours:
- 7 AM–11 AM in Coordinated Universal Time (4 PM–8 PM in Korea Standard Time) — suggest 9:00 AM Coordinated Universal Time (6:00 PM Korea Standard Time).
This means an early start or late finish for one side, but it’s a reasonable slot for a one-off meeting.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
South Korea
- New Year's DayThu, Jan 1
- Lunar New YearMon, Feb 16
- Lunar New YearTue, Feb 17
- Lunar New YearWed, Feb 18
- Independence Movement DayMon, Mar 2
- Labour DayFri, May 1
- Children's DayTue, May 5
- Buddha's BirthdayMon, May 25
- Local Election DayWed, Jun 3
- Memorial DaySat, Jun 6
- Constitution DayFri, Jul 17
- Liberation DayMon, Aug 17
- ChuseokThu, Sep 24
- ChuseokFri, Sep 25
- ChuseokSat, Sep 26
- National Foundation DayMon, Oct 5
- Hangul DayFri, Oct 9
- Christmas DayFri, Dec 25
About these zones
Coordinated Universal Time is also known as UTC.
Korea Standard Time is also known as KST. To call South Korea, dial +82.
Korea Standard Time is approximately 8,200 miles northeast of Coordinated Universal Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| UTC | KST | Day |
|---|---|---|
| 12:00 am | 9:00 am | Same day |
| 1:00 am | 10:00 am | Same day |
| 2:00 am | 11:00 am | Same day |
| 3:00 am | 12:00 pm | Same day |
| 4:00 am | 1:00 pm | Same day |
| 5:00 am | 2:00 pm | Same day |
| 6:00 am | 3:00 pm | Same day |
| 7:00 am | 4:00 pm | Same day |
| 8:00 am | 5:00 pm | Same day |
| 9:00 am | 6:00 pm | Same day |
| 10:00 am | 7:00 pm | Same day |
| 11:00 am | 8:00 pm | Same day |
| 12:00 pm | 9:00 pm | Same day |
| 1:00 pm | 10:00 pm | Same day |
| 2:00 pm | 11:00 pm | Same day |
| 3:00 pm | 12:00 am | +1 day |
| 4:00 pm | 1:00 am | +1 day |
| 5:00 pm | 2:00 am | +1 day |
| 6:00 pm | 3:00 am | +1 day |
| 7:00 pm | 4:00 am | +1 day |
| 8:00 pm | 5:00 am | +1 day |
| 9:00 pm | 6:00 am | +1 day |
| 10:00 pm | 7:00 am | +1 day |
| 11:00 pm | 8:00 am | +1 day |
Daylight saving time
Neither Coordinated Universal Time nor Korea Standard Time observes daylight saving time. The offset between these zones remains constant year-round.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 5:56 AM
- Sunset
- 6:03 PM
- Day length
- 12h 7m
- Sunrise
- 5:12 AM
- Sunset
- 7:51 PM
- Day length
- 14h 38m
Daylight overlap: 4h 55m — 5:56 AM–10:51 AM in Coordinated Universal Time (2:56 PM–7:51 PM in Korea Standard Time). Both locations are in daylight during this window.
Cities in these zones
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Korea Standard Time
- GMP
- ICN
- PUS
- TAE
- CJJ
- KWJ
- MWX
Related conversions
Common conversions
- What is 9:00 am UTC in KST?
- 9:00 am UTC is 6:00 pm KST.
- What is 12:00 pm UTC in KST?
- 12:00 pm UTC is 9:00 pm KST.
- What is 12:30 pm UTC in KST?
- 12:30 pm UTC is 9:30 pm KST.
- What is 2:00 pm UTC in KST?
- 2:00 pm UTC is 11:00 pm KST.
- What is 5:00 pm UTC in KST?
- 5:00 pm UTC is 2:00 am KST, the next day.
- What is 11:30 pm UTC in KST?
- 11:30 pm UTC is 8:30 am KST, the next day.