CST to KST — Time Zone Converter
Central Time (CST, UTC−6) covers the central United States; Korea Standard Time (KST, UTC+9) covers South Korea. In standard time, KST is 15 hours ahead of CST. Standard working days in the central United States and South Korea barely overlap, so most teams alternate who takes the early-morning or late-evening slot. Use the live converter below — it applies today's IANA time zone data, including daylight saving time, and gives you a meeting schedule you can paste straight into email or Slack.
CST to KST, hour by hour (today)
Frequently asked questions
What is the time difference between CST and KST?+
Central Time (CST) is UTC−6 and Korea Standard Time (KST) is UTC+9, so in standard time KST is 15 hours ahead of CST. The gap shifts by an hour around daylight saving transitions, so always check a live converter near the change dates in spring and autumn.
Does CST or KST observe daylight saving time?+
Central Time observes daylight saving time (CST in winter, CDT in summer). Korea Standard Time stays on UTC+9 all year — no daylight saving time.
What is the best time for a meeting between CST and KST?+
Standard working days in the central United States and South Korea barely overlap, so most teams alternate who takes the early-morning or late-evening slot. The converter above highlights office hours in green for both zones, so you can slide to a time that works for everyone.
How do I share a CST to KST meeting time by email?+
Pick a time in the converter, log it to the Smart Clipboard, and copy it as bullets, a formatted table, or a one-line question — with both CST and KST times spelled out so nobody has to do the math.