US Trends

when does korean stock market open in est

The Korean stock market’s regular session opens at 9:00 AM Korea time , which is 8:00 PM Eastern Time the previous day when the U.S. is on standard time, and 7:00 PM ET the previous day when the U.S. is on daylight saving time.

Quick conversion

  • 9:00 AM KST = 8:00 PM ET in winter.
  • 9:00 AM KST = 7:00 PM ET in summer.

Market sessions

  • Regular trading: 9:00 AM to 3:30 PM KST.
  • Pre-market: 7:30 AM to 9:00 AM KST.
  • Post-market: 3:30 PM to 6:00 PM KST.

Note

Some recent reports mention expanded extended-hours trading plans for the Korea Exchange, but the standard regular open remains 9:00 AM KST unless you specifically mean pre-market trading.