TimeSyncer - World Map

Capital Time Zone

Korea Standard Time KST


What Time Is It in South Korea Right Now?


Local time in Seoul

Today's Date and Day in Seoul (KR):



Current Date and Time Information

Date&TimeDetails

Time Zone (IANA)

Day of Year

Days to Year End

Week of Year

Month of Year

Months to Year End

Current Season

Next Season

Leap Year

Next Leap Year

Today's Date in Other Formats

Unix

ISO

EU

US

SQL

South Korea Time Difference Tool - Convert Time Easily

Easily convert time zones between South Korea and any city, country, or time zone in the world. Use this tool to check the current time difference and plan meetings, calls, or travel with confidence. Choose any location as the primary reference point to display the time difference.

Explore Professional Features

🌍 Time Zone Converter Guide

Compare times across different zones and explore any moment in the day

Set Base Timezone

Click the up arrow to make any timezone your reference point. All time differences will be calculated from this base.

Reorder Zones

Drag the grip icon to rearrange timezones in your preferred order. Base timezone cannot be dragged but others can be reordered.

Remove Zone

Click the X button to delete a timezone from your comparison. Cannot remove if it's the only one left.

🕐
Time Slider

Use the slider below to explore different times. Drag to see how times change across all zones simultaneously.

📱
Hour Tiles

View hour tiles showing the full 24-hour day. Use the time slider to navigate through different hours. Darker tiles indicate nighttime hours.

⚙️
Format Controls

Switch between 12h/24h format and choose "Each" to set different formats per timezone or "All" to apply the same format to all zones.

💡 Pro tip: Add more timezones using the search above, then set one as your base to see all time differences at a glance!

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South Korea - Country Information

Flag of  South Korea

The flag of South Korea

Asia

Capital

Continent

ISO Code

Time Zone

IANA Timezone

Neighbors

Capital Time Difference - Seoul vs Neighboring Capitals

FromToTime Difference
Flag of  South KoreaSeoul (KST)
Same time

Daylight Saving Time Changes in Asia/Seoul

Track historical and upcoming DST transitions for Asia/Seoul from 1900 to 2050. See when clocks spring forward or fall back and how the UTC offset changes.

Current Status in Asia/Seoul

Korea Standard Time (KST)

UTC+9

Next Change

No scheduled changes

Years:
Select up to 5 years
DateTimeChange TypeUTC Offset
No DST changes found for the selected time zone and year range

South Korea Time Zones & Neighboring Countries

IANA Time ZoneFull NameAbbrUTC OffsetDST Offset
Asia/Seoul CAPITAL
Korea Standard TimeKST+9 Hours+9 Hours

Neighboring Countries

Country, CapitalIANA Time ZoneFull NameAbbrUTC OffsetDST Offset
Asia/PyongyangNorth Korea TimeKST+9 Hours+9 Hours

South Korea Time Zone: the Clock That Moved for a Television Audience

Nine ahead, held steady. South Korea reads UTC+9 as Korea Standard Time in every month, and no seasonal rule has applied for decades. Add nine hours to UTC for the local figure. Coming from elsewhere, take nine and deduct that place's own distance from UTC, where a value below zero will stretch the gap rather than shrink it.

  • Time zone: UTC+9, Korea Standard Time

  • Daylight saving: Dropped immediately after its last use

  • IANA identifier: Asia/Seoul

  • Zones nationwide: One, mainland and islands alike

  • Land neighbour: North Korea, on the identical reading

The Korean UTC Offset and What the Record Shows

Field

Value

Hours ahead of UTC

Nine

Name and code

Korea Standard Time, KST

Database entry

Asia/Seoul

Reference meridian in use

One hundred and thirty-five degrees east

Offset used in the nineteen fifties

Eight and a half hours

Summer figure during the last trial

Ten hours ahead

Where the Official Second Comes From

Set by statute, kept by a laboratory. The national reading is defined in law and maintained by the country's metrology institute rather than by any broadcaster or observatory, and its signal is what network clocks, exchanges and transport systems align against.

An older habit of public time. The instinct is not new. A court inventor built an automatic water clock for the crown in the fifteenth century, and a bowl-shaped sundial was set up in public places soon afterwards so that anyone passing could read the hour without asking permission.

Business Hours Under a Fixed Reading

A conventional week, a long one. Offices run Monday to Friday with the weekend free, commonly from nine until six. Because the offset is fixed, the working overlap with Tokyo never changes, the overlap with China holds at one hour, and only European and American counterparts introduce a date on which the arithmetic shifts.

Light across the year. Seoul sits near thirty-seven and a half degrees north, so the day runs from about nine and a half hours at the December solstice to close to fifteen in June. Winter mornings begin dark for anyone starting at nine, and midsummer evenings hold light past eight.

Daylight Saving Time and an Hour Sold to Broadcasters

Moved for prime time. The last occasion the clocks here went forward was in the summers of 1987 and 1988, and the reason was not domestic. Seoul was hosting the Olympic Games, American networks were paying for live coverage, and a one-hour advance moved daytime finals into evening viewing on the far side of the Pacific. Without it, several finals would have reached that audience in the small hours.

Reversed as soon as it ended. The measure drew public criticism at the time, with the opposition arguing that a whole population had been rearranged around a broadcast schedule. It was abolished directly after the closing ceremony and has not been revived.

Border Time Differences on a Divided Peninsula

One land frontier, and it matches. The only land boundary runs north, and the clock on the far side reads exactly the same. That has been true since the northern reading was realigned, and it means the most closely watched border anywhere carries no time step at all.

Across the water. Japan holds the identical figure to the east, so flights that way change nothing on a watch either. China lies an hour behind to the west, which makes the Yellow Sea the nearest place the hour actually moves.

Questions That Surface Around Korean Local Time

Is the whole country on one clock?
Yes, mainland and islands alike, with no regional exception anywhere.

Why does the clock sit ahead of the sun here?
Because the reference meridian lies east of the peninsula. The country used a nearer figure in the nineteen fifties and returned to the present one afterwards.

Would a return to that nearer figure be simple?
Proposals surface periodically and have not carried. The objection is practical: a fractional offset adds a conversion step for every counterparty that uses whole hours.

Does North Korea read the same time?
It does, and that has held since the northern clock was realigned.

When does the date change against UTC?
At 15:00 UTC, arriving in the middle of a European working afternoon.

Which record belongs in software?
Asia/Seoul, which carries the earlier offsets and the two Olympic summers that a fixed number would lose.

Seoul Local Time Set Beside Distant Working Days

Anchor on the capital's noon. Seoul passes midday at 03:00 UTC. Brussels opening at nine meets five in the Korean afternoon through winter and four in summer, while nine in San Francisco corresponds to two the following morning.

Hub

Its offset

Seoul measured against it

San Francisco

UTC-8 / UTC-7

Ahead 17 hours, or 16 under their summer rules

Brussels

UTC+1 / UTC+2

Ahead 8 hours, or 7 under continental summer rules

Istanbul

UTC+3

Ahead 6 hours, unchanging

Karachi

UTC+5

Ahead 4 hours, unchanging

Bangkok

UTC+7

Ahead 2 hours, unchanging

Taipei

UTC+8

Ahead 1 hour, unchanging

Tokyo

UTC+9

The same hour, unchanging

Brisbane

UTC+10

Behind 1 hour, unchanging

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