Time in Seoul, South Korea
Monday, September 21, 2026
Seoul does not change its clocks
A fixed offset, all year round
Seoul stays on Korean Standard Time at UTC+09:00 every day of the year. There is no spring-forward or fall-back here, which puts it with the majority: most of the world's time zones do not observe daylight saving.
That sounds like it makes scheduling simpler, and locally it does — but it introduces a different trap for anyone working with Seoul from a country that does change clocks. The offset between you and Seoul is not constant: it changes when your clocks move, even though nothing changed here. A recurring call that has run at the same local time for months will shift by an hour, from your side, without anyone editing the invite.
When the gap to Seoul changes
Dates in the next year where the difference shifts, by counterpart city
The difference between two cities is not a constant. It changes whenever either side moves its clocks — and because regions switch on different dates, there are short windows each year when the usual gap is wrong. These are the dates that matter for Seoul:
London (United Kingdom)
- From 25 October 2026: Seoul is 9 hours ahead of London
- From 28 March 2027: Seoul is 8 hours ahead of London
Frankfurt (Germany)
- From 25 October 2026: Seoul is 8 hours ahead of Frankfurt
- From 28 March 2027: Seoul is 7 hours ahead of Frankfurt
Sydney (Australia)
- From 4 October 2026: Seoul is 2 hours behind Sydney
- From 4 April 2027: Seoul is 1 hour behind Sydney
Daylight and the sun over Seoul
Seoul sits at 37.57°, 126.98°
Longest day
14h 46m of daylight
Shortest day
9h 34m of daylight
Yearly swing
5h 12m between them
Clock time versus solar time
When the clock in Seoul reads 12:00, the sun is not yet overhead — the civil clock runs 32 minutes ahead of mean solar time here.
Quick Time Comparisons
See how Seoul time compares to other major cities right now
Time Zone Offset from Seoul
Best Times to Contact Seoul
Optimal calling and meeting hours
Business Hours
Typically 9:00 AM - 5:00 PM local time
Best for professional calls, meetings, and business inquiries
Personal Calls
Evenings 7:00 PM - 10:00 PM local time
Ideal for catching up with family and friends
Pro Tip: Use the meeting coordinator tool above to find overlapping working hours between your location and Seoul. This makes scheduling international meetings much easier!
Cultural Business Context
Seoul, South Korea • 18:24 local time
Consider Timing
Outside business hours
Quick Stats
Business Hours Timeline
Best Times to Contact
Times to Avoid
Business hours: 09:00 - 18:00 | Weekend: Sunday, Saturday | Lunch: 12:00 - 13:00
🌍 Cultural awareness enhances business relationships and prevents scheduling conflicts across global teams
Places related to Seoul
Cities that share a clock, a country, or an offset
On exactly the same clock as Seoul
These share the Asia/Seoul zone, so they keep the same time as Seoul year-round.
Meeting Time Coordinator
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Common Questions About Seoul Time
Frequently asked questions
What time zone is Seoul in?
Seoul operates in the Asia/Seoul time zone, known as Korean Standard Time, currently UTC+09:00. This clock applies that offset directly from the IANA time zone database.
Does Seoul observe daylight saving time?
No. Seoul stays on Korean Standard Time at UTC+09:00 all year and does not observe daylight saving time. Note that the difference between you and Seoul can still change when your own clocks shift.
What's the time difference between Seoul and my location?
The time comparison tool above shows the current time difference. You can also use our meeting coordinator to find the best times for calls across different time zones.
How accurate is this Seoul clock?
Our clock synchronizes with your device's time and applies the official Asia/Seoul time zone offset. It updates every second and automatically handles daylight saving time, ensuring accuracy within a second.
Can I use this for scheduling meetings in Seoul?
Yes! This tool is perfect for scheduling. Use the meeting coordinator above to compare multiple time zones and find optimal meeting times that work for everyone in Seoul and other locations.
Time Zone Facts About Seoul
Interesting information about Seoul's time
IANA identifier
Asia/Seoul
Standard time name
Korean Standard Time
Standard offset
UTC+09:00
Daylight saving
Not observed — the offset is fixed year-round
Region
Asia
Population
9,776,000