What time is it in Seoul
The clock below shows Seoul right now. It is UTC+9, 8 hours ahead of London — and the difference is what actually matters, because it does not change while you read the page.
The colour of a row is the local time of day: green for working hours, amber for early morning and evening, grey for night. The same thing is written in words next to the city — that is the answer to “can I call now”, without the arithmetic.
Everything is counted in your browser: the time zone rules, including daylight saving, are already there. Nothing is uploaded, nothing is downloaded, and the page keeps working with the network off.
Half-hour zones are shown as they are: India is 5:30 from London, Nepal 5:45. Rounding those to whole hours would be wrong for a billion and a half people — so the difference is written with minutes.
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How to use
- The first line is your own time zone — the browser knows it.
- The second is Seoul: the current time and the difference from you.
- Move the slider to the hour of your call and see what time that is there.
Why the difference matters more than the clock
A clock tells you the moment you looked. The difference tells you what to do with it: whether an email will arrive during working hours, whether a call at seven is polite, whether tomorrow’s meeting is today for them. That is why the page shows the difference next to the time and marks the working day in green — the answer to “can I call now” should not require arithmetic.
Daylight saving is taken into account by itself
Countries move their clocks by law, and they change those laws more often than a website ships an update. So this page carries no table of its own: the offset is asked of your browser for the exact moment shown. When the clocks change on either side, the difference here changes with them.
Frequently asked questions
What time is it in Seoul right now?
The clock above shows it and keeps running. The time zone is UTC+9, which is 8 hours ahead of London.
Does the page know about daylight saving?
Yes. The offset is taken from your browser for the moment being shown, so a change of clocks on either side is handled without any action from you.
How do I plan a call?
Move the slider to the hour that suits you: every city on the page shows that same moment, with tomorrow and yesterday marked. Green means the local working day.