Time in Korea Now
Live KST, your exact time difference, and a dated call window.
KST · UTC+9 · No DST
Reading the Korea date…
Checking your device clock…
South Korea uses UTC+9 all year
South Korea uses one national civil time zone: Korea Standard Time, commonly abbreviated KST. Its offset is 9 hours ahead of UTC, and the country does not move its clocks for daylight saving time. The calculator uses the canonical IANA identifier Asia/Seoul.
Why the U.S.–Korea difference changes
South Korea’s offset stays fixed, but most U.S. zones switch between standard and daylight time. South Korea is 14 hours ahead of New York during EST and 13 hours ahead during EDT. Select an exact date instead of assuming one year-round difference.
Plan a call without losing the calendar date
The planner converts a sample 9:00 AM–6:00 PM South Korea daytime window into your selected zone. It shows both local dates because North American conversions commonly begin on the previous calendar day. The sample is for coordination only and does not claim that every South Korean organization uses those hours.
Seoul, Busan, and Jeju share the same time
South Korea does not split into regional time zones. Seoul, Busan, Incheon, Daegu, Daejeon, Gwangju, and Jeju all use KST, so you do not need a separate city offset when planning domestic travel or calls.
Privacy and method
The page calculates the time-zone conversion in your browser with its IANA data. It compares your device clock with several small requests to ToolNeko’s server, applies a correction only when those samples agree, and shows when that check is unavailable. This is a network estimate, not an atomic-clock or NTP service. The page reads your browser’s time-zone setting without requesting location permission, and your selected date and zone are not sent to ToolNeko’s server.
Frequently asked questions
What time zone is South Korea in?
South Korea uses Korea Standard Time, KST, at UTC+9. The IANA time-zone identifier is Asia/Seoul, and the same civil time applies across the country.
Does South Korea observe daylight saving time?
No. South Korea stays on UTC+9 throughout the year. A difference with a U.S. or European city can still change when that other location enters or leaves daylight saving time.
How many hours ahead is Korea from New York?
South Korea is 13 hours ahead of New York during EDT and 14 hours ahead during EST. Choose an exact date because New York changes clocks while South Korea does not.
Are Seoul and Busan in the same time zone?
Yes. Seoul, Busan, Jeju, and the rest of South Korea use KST at UTC+9.
Is Korea 12 hours ahead or behind?
That depends on your location and the date. For example, South Korea is 13 or 14 hours ahead of New York and 16 or 17 hours ahead of Los Angeles, depending on U.S. daylight saving time.
What is 9 AM to 6 PM in Korea in my time zone?
Choose a South Korea date and your time zone in the planner. It converts both endpoints, includes the correct local dates, and accounts for daylight-saving rules in your selected zone.