KST to IST — Time Zone Converter
Korea Standard Time (KST, UTC+9) covers South Korea; India Standard Time (IST, UTC+5:30) covers India. In standard time, IST is 3½ hours behind KST. Mornings in India overlap with afternoons in South Korea, which keeps both sides inside office hours. 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.
KST to IST, hour by hour (today)
Frequently asked questions
What is the time difference between KST and IST?+
Korea Standard Time (KST) is UTC+9 and India Standard Time (IST) is UTC+5:30, so in standard time IST is 3½ hours behind KST. Neither zone observes daylight saving time, so this difference is the same all year.
Does KST or IST observe daylight saving time?+
Korea Standard Time stays on UTC+9 all year — no daylight saving time. India Standard Time stays on UTC+5:30 all year — no daylight saving time.
What is the best time for a meeting between KST and IST?+
Mornings in India overlap with afternoons in South Korea, which keeps both sides inside office hours. 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 KST to IST 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 KST and IST times spelled out so nobody has to do the math.