Convert India Standard Time to Korea Standard Time
Instantly convert India Standard Time (IST) to Korea Standard Time (KST) with our free online calculator.
India Standard Time
10:50:51 AM
Wed, Jun 24 (IST)
Korea Standard Time
02:20:51 PM
Wed, Jun 24 (KST)
Convert a Specific Time
24-Hour Comparison
| IST | KST |
|---|---|
| 12:00 AM | 3.5:00 AM |
| 1:00 AM | 4.5:00 AM |
| 2:00 AM | 5.5:00 AM |
| 3:00 AM | 6.5:00 AM |
| 4:00 AM | 7.5:00 AM |
| 5:00 AM | 8.5:00 AM |
| 6:00 AM | 9.5:00 AM |
| 7:00 AM | 10.5:00 AM |
| 8:00 AM | 11.5:00 AM |
| 9:00 AM | 0.5:00 PM |
| 10:00 AM | 1.5:00 PM |
| 11:00 AM | 2.5:00 PM |
| 12:00 PM | 3.5:00 PM |
| 1:00 PM | 4.5:00 PM |
| 2:00 PM | 5.5:00 PM |
| 3:00 PM | 6.5:00 PM |
| 4:00 PM | 7.5:00 PM |
| 5:00 PM | 8.5:00 PM |
| 6:00 PM | 9.5:00 PM |
| 7:00 PM | 10.5:00 PM |
| 8:00 PM | 11.5:00 PM |
| 9:00 PM | 0.5:00 AM(+1d) |
| 10:00 PM | 1.5:00 AM(+1d) |
| 11:00 PM | 2.5:00 AM(+1d) |
How to Convert India Standard Time to Korea Standard Time
Formula
To convert India Standard Time (IST) to Korea Standard Time (KST): Convert IST to KST
About India Standard Time (IST)
India Standard Time (IST, IANA: Asia/Kolkata) is the civil time of the Republic of India and Sri Lanka, set at UTC+5:30 — one of the world's most populous 30-minute-offset time zones. India does not observe Daylight Saving Time per the Government of India directive (a brief DST trial in 1942-1945 during WWII was discontinued; subsequent proposals from 2010-2017 were rejected by the Indian Government citing minimal energy savings + agricultural sector disruption). IST is defined as the local mean solar time at 82.5°E longitude (passing through Shankargarh fort in Uttar Pradesh, with the reference clock at the National Physical Laboratory in New Delhi per the Indian Institute of Astrophysics). The 30-minute offset is preserved because India's east-west extent (68°E to 97°E) spans ~28° of longitude — approximately 2 hours of solar time — and the central meridian is most representative for a single unified zone. IST serves approximately 1.4 billion people in India + 22 million in Sri Lanka (Sri Lanka observes SLST = UTC+5:30, identical to IST). Major cities: Mumbai (12.5M), Delhi (16.8M, NCR 29M), Bengaluru (8.4M), Hyderabad (10M), Chennai (7M), Kolkata (4.5M), Ahmedabad (5.5M), Pune (3.1M). Affects: BSE/NSE stock exchanges, IPL Indian Premier League cricket schedules.
About Korea Standard Time (KST)
Korea Standard Time (KST, IANA: Asia/Seoul) is the civil time of both the Republic of Korea (South Korea) and the Democratic People's Republic of Korea (North Korea — since May 2018 when North Korea reverted to KST from its briefly used Pyongyang Time UTC+8:30 of 2015-2018), set at UTC+9:00 year-round (no DST). South Korea observed Daylight Saving Time briefly in 1948-1951 and again 1987-1988 during the Seoul Olympics (to facilitate evening TV broadcasts to North America), but discontinued it both times. KST is identical in offset to Japan Standard Time (JST), Yakutsk Time, Western Indonesian Time WIT (eastern Indonesia), and Palau Time (PWT) — creating a 'business-friendly' Northeast Asia zone of synchronized financial centers (Seoul-Tokyo). KST serves the Korean Peninsula's approximately 78 million residents (South Korea 52M + North Korea 26M). Major KST cities: Seoul (9.7M city, 25.7M metro — South Korean capital and the world's 5th-largest metro), Busan (3.3M — South Korea's 2nd-largest city + main port), Incheon (3M — Seoul Capital Area, location of Incheon International Airport ICN), Daegu (2.4M), Daejeon (1.5M), Pyongyang (3.2M — North Korean capital), Hamhung (770K — North Korea), Nampo (980K — North Korea). Affects: KRX (Korea Exchange) trading hours, K-pop industry music-release timing, Samsung + LG + Hyundai global headquarters operations.