Time in Korea, live from Seoul.

The time in Korea is Korea Standard Time, KST, which is UTC+9. Seoul and the rest of South Korea keep this one clock all year, and the country does not use daylight saving time now. The big clock above shows Seoul time to the second from your device clock, with the date, and the cards give the offset and your gap to Korea right now.

How to use this Korea time page

1. Read the big clock: hours, minutes and seconds in Korea, then the date, the name of the zone and its UTC offset.
2. The cards under it show the time zone, the UTC offset, whether the place changes its clocks and when next, and the difference from your own time zone. If the page has guessed your zone wrong, pick the right one under Your place.
3. To plan a call, set a Date and a Time under What time is it there when it is. The line under the boxes gives the time in Korea, with the day. Use now sets your own current time.
4. The row of eight times below shows common hours of your day, every three hours, next to the matching time there.
5. On the right, tick 24-hour clock or switch Show seconds off. Copy the time copies one line you can paste into a message. Your choices stay in this browser.

What the official sources say

The Korea Research Institute of Standards and Science, KRISS, keeps Korea Standard Time. In a January 2026 article about its public time program, it says Korea Standard Time is kept accurate to within a few nanoseconds of UTC. The IANA time zone database lists Asia/Seoul at UTC+9 and records daylight saving for Korea in a few past years only, the last in 1987 and 1988. The page reads the current rules from your browser, so it shows no clock change for Korea in the next two years. Checked 18 Oct 2026.

Korea compared with other places

Korea stays at UTC+9, so the gap changes only when the other place moves its clocks. The table shows how far Korea is ahead of each place in the middle of January and July 2026.

Tokyo shares the same clock, so the gap is nil all year. Shanghai and Singapore are 1 hour behind and do not change. Sydney is in the southern hemisphere and moves its clocks at the opposite times of year, so the gap changes in April and October. The US changes its clocks in March and November, and Europe in March and October.

A morning in Seoul on other clocks

Here is 10:00 AM on Tuesday 20 October 2026 in Seoul. Korea is far ahead of the Americas, so the date there is the day before:

The arithmetic for New York: 10:00 AM KST is 1:00 AM UTC (subtract 9 hours). New York is on EDT, 4 hours behind UTC, so it is 9:00 PM on Monday 19 October.

Planning a call with Seoul

A call that works for Seoul and the US East coast sits in the US evening and the Korean morning: 8:00 PM in New York in summer is 9:00 AM in Seoul the next day. With London, the London morning is the Korean late afternoon: 9:00 AM in London in winter is 6:00 PM in Seoul. Use the box above to get the exact answer, with the day, for the date you plan.

Reading the date

The answer line above carries the weekday and date in the other place. When Korea is on Tuesday morning, North America is still on Monday, so a Monday deadline in the US is a Tuesday one in Korea. Check the date in every result.

Common mistakes with Korea time

The date is the most common one, since Korea is on the next day for much of the American day. The next is a half hour added from habit: Korea's offset is a whole 9 hours. The last is mixing up Korea with Japan or China. Korea and Japan share UTC+9, but China is on UTC+8, an hour behind Korea. If an answer looks off, read the day written next to it.

Is the clock exact?

The page shows your device clock converted to Korea time. If the device clock is a few seconds off, so is the page. The online clock has a Check my clock button that compares your device with the web server.

Sources, checked 18 Oct 2026. KRISS, UTCk 4 article, 27 Jan 2026; the IANA time zone database (version 2026e), asia file.

Related: time in Japan and the time zone converter.