Korean Stock Market Hours in Eastern Time
The KRX regular equity session runs from 09:00 to 15:30 KST. That is 8:00 p.m. to 2:30 a.m. in Eastern daylight time, or 7:00 p.m. to 1:30 a.m. in Eastern standard time, beginning on the previous U.S. calendar day. Check Korean holidays and special-session notices before placing an order.
Reviewed
- Use America/New_York for Eastern time so daylight saving is handled.
- A Monday Korean regular session begins on Sunday evening in the U.S.
- Regular-session hours do not describe every venue or extended session.
Convert the regular session, including the date
KRX publishes regular equity hours of 09:00–15:30 KST. Korea uses UTC+9; Eastern time is UTC−4 during daylight saving and UTC−5 during standard time. The conversions below describe an ordinary trading day. Holidays and exchange announcements can override the normal schedule.
| Time zone | Opens | Closes |
|---|---|---|
| KST (UTC+9) | 09:00 | 15:30 |
| EDT (UTC−4) | 20:00, previous day | 02:30 |
| EST (UTC−5) | 19:00, previous day | 01:30 |
Keep the venue and session on your order ticket
Regular KRX hours are not the full set of Korean equity trading hours. Nextrade operates an alternative trading system, and extended-session availability depends on the venue, security, and broker. Check the current session offered on your ticket rather than applying the regular-session table to every order.
Keep the quote date separate from the filing date
When researching Samsung Electronics after the Korean close, check the date on its quote and the timestamps of subsequent filings separately. An announcement released after a session may not be reflected in that session’s closing price. The site’s source and freshness labels help identify what you are comparing.
Use the broker for execution availability
A research page can remain accessible while a venue is closed, and a cached price does not prove that an order can execute. Confirm the Korean trading calendar, instrument eligibility, session, and order type with your broker. Use a timezone-aware calendar for reminders so U.S. clock changes do not shift your routine by an hour.
Common questions
Does Monday trading in Korea start on Sunday in the U.S.?
For a normal KRX regular session, yes. Monday 09:00 KST corresponds to Sunday 20:00 EDT or 19:00 EST. A Korean holiday or special schedule can change whether or when trading occurs.
Is all Korean stock trading over at 15:30 KST?
No. That is the end of the regular KRX equity session. Other sessions and venues can have different hours and eligibility. Confirm the current schedule and supported security with your broker.