KST to EEST
-6hKST
KSTSOURCEEEST
EESTGreen rows indicate typical business hours (9 AM - 5 PM)
KST and EEST on the World Map
The map below highlights the KST (Korea Standard Time) and EEST (Eastern European Summer Time) timezone regions across the globe.
KST – Korea Standard Time
UTC+09:00Korea Standard Time (KST) is the time zone for South Korea, 9 hours ahead of UTC.
- •South Korea does not observe daylight saving time.
- •Seoul is home to Samsung, LG, and Hyundai headquarters.
- •KST is the same offset as JST (UTC+09:00).
EEST – Eastern European Summer Time
UTC+03:00Eastern European Summer Time (EEST, UTC+03:00) is the daylight saving period across eastern Europe, from late March to late October.
- •EEST runs from the last Sunday in March to the last Sunday in October.
- •EEST is one hour ahead of Eastern European Time (EET, UTC+02:00).
- •During EEST, eastern Europe is level with Moscow, Istanbul and Riyadh.
- •EEST follows the EU-wide summer time schedule.
KST to EEST Time Difference – Complete Guide
KST runs on Korea Standard Time (KST) at UTC+09:00. EEST runs on Eastern European Summer Time (EEST) at UTC+03:00. That puts KST 6 hours behind EEST — a difference of -6h at the current offsets.
In practice, when it is 9:00 AM in KST it is 3:00 AM in EEST. Midnight in KST is 6:00 PM in EEST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
KST to EEST time conversion table
| KST (KST) | EEST (EEST) | Day |
|---|---|---|
| 12:00 AM | 6:00 PM | previous day |
| 6:00 AM | 12:00 AM | same day |
| 7:00 AM | 1:00 AM | same day |
| 8:00 AM | 2:00 AM | same day |
| 9:00 AM | 3:00 AM | same day |
| 12:00 PM | 6:00 AM | same day |
| 3:00 PM | 9:00 AM | same day |
| 5:00 PM | 11:00 AM | same day |
| 6:00 PM | 12:00 PM | same day |
| 9:00 PM | 3:00 PM | same day |
Why people convert KST to EEST time
- Scheduling a call from KST to EEST: a 10:00 AM start in KST lands at 4:00 AM in EEST, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both KST and EEST are inside the 9-to-5 working day between 3:00 PM and 5:00 PM KST time (9:00 AM–11:00 AM EEST). That is roughly 2 hours of usable overlap.
- Watching a live event or market open: KST viewers need 3:00 AM in EEST to catch a 9:00 AM start there, and 6:00 AM if the event is anchored to KST.
- Always state the zone abbreviation, not just the hour. "3:00 PM KST" is unambiguous; "3 PM" across a -6h gap is not.
- Block 3:00 PM–5:00 PM KST as the recurring meeting window if you work primarily from KST and need EEST colleagues present.
About KST (Korea Standard Time)
Korea Standard Time (KST) is the time zone used in South Korea. It shares the same UTC offset as Japan Standard Time but is a distinct time zone. South Korea does not observe daylight saving time. Seoul, the capital, is a major global tech and business hub.
About EEST (Eastern European Summer Time)
Eastern European Summer Time (EEST) is the daylight saving period used across eastern Europe, when clocks move one hour forward from Eastern European Time (EET, UTC+02:00) to UTC+03:00. It runs from the last Sunday in March to the last Sunday in October, in step with the rest of the European Union. EEST covers Greece, Finland, Romania, Bulgaria, the Baltic states, Ukraine and Moldova, and matches the offset used year-round by Moscow, Istanbul and Riyadh during those months. Athens and Helsinki both sit near the western edge of the EEST band, so summer evenings stay light well past 21:00.
Best time to call between KST and EEST
Both KST and EEST sit inside the 9 AM – 5 PM working day between 3:00 PM–5:00 PM KST, which is 9:00 AM–11:00 AM EEST. That gives roughly 2 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
KST and EEST overlap for about 2 hours during the working day — enough for meetings if you avoid the edges of the window.
KST is 6 hours behind EEST (KST UTC+09:00 → EEST UTC+03:00). The shared working window is 3:00 PM–5:00 PM KST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
KST
Does not observe DST
EEST
☀ Currently in DST
Standard: UTC+02:00 · DST: UTC+03:00
Clocks fall back on Sun, Oct 25, 2026
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between KST and EEST?
KST (KST, UTC+09:00) is 6 hours behind EEST (EEST, UTC+03:00). The gap is currently -6h.
How do I convert KST time to EEST time?
Add -6h to KST local time. For example, 9:00 AM in KST is 3:00 AM in EEST.
What time is it in EEST right now?
EEST uses EEST at UTC+03:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -6h offset from KST.
What is the best time to call EEST from KST?
Call between 3:00 PM and 5:00 PM KST — that maps to 9:00 AM–11:00 AM EEST and keeps both parties inside the working day.
Which is behind, KST or EEST?
KST is 6 hours behind EEST. When it is 12:00 PM in KST it is 6:00 AM in EEST.
Does daylight saving time affect the KST–EEST difference?
Neither zone observes daylight saving time, so the -6h offset between KST and EEST is fixed all year.
Which other cities share KST's time zone?
KST also covers Seoul, Busan, Incheon, Daegu, Daejeon, Pyongyang.
Which countries use KST, KST's zone?
KST is used in South Korea, North Korea.
Is there a day difference between KST and EEST?
Not normally. The -6h gap only pushes the date over the previous day.
What is the time difference between KST and EEST?
EEST is -6h from KST.
What timezone is KST in?
KST operates on its local timezone.
What timezone is EEST in?
EEST operates on its local timezone.
Which countries use KST (Korea Standard Time)?
KST is used in South Korea, North Korea.
Does KST observe daylight saving time?
No, KST does not observe daylight saving time and remains at UTC+09:00 year-round.
What are some interesting facts about KST?
South Korea does not observe daylight saving time. Seoul is home to Samsung, LG, and Hyundai headquarters.
Which cities are in the EEST timezone?
Major cities in the EEST timezone include Athens, Helsinki, Bucharest, Sofia, Kyiv, Riga.
What is the UTC offset for EEST?
Eastern European Summer Time (EEST) is at UTC+03:00. During daylight saving time, it shifts to EEST.
What should I know about the EEST timezone?
EEST runs from the last Sunday in March to the last Sunday in October. EEST is one hour ahead of Eastern European Time (EET, UTC+02:00).
When is it midnight in KST, what time is it in EEST?
When it is 12:00 AM (midnight) in KST (KST), it is -6h later in EEST (EEST).
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