Convert Hawaii Standard Time to Korea Standard Time
Instantly convert Hawaii Standard Time (HST) to Korea Standard Time (KST) with our free online calculator.
Hawaii Standard Time
07:20:49 PM
Tue, Jun 23 (HST)
Korea Standard Time
02:20:49 PM
Wed, Jun 24 (KST)
Convert a Specific Time
24-Hour Comparison
| HST | KST |
|---|---|
| 12:00 AM | 7:00 PM |
| 1:00 AM | 8:00 PM |
| 2:00 AM | 9:00 PM |
| 3:00 AM | 10:00 PM |
| 4:00 AM | 11:00 PM |
| 5:00 AM | 12:00 AM(+1d) |
| 6:00 AM | 1:00 AM(+1d) |
| 7:00 AM | 2:00 AM(+1d) |
| 8:00 AM | 3:00 AM(+1d) |
| 9:00 AM | 4:00 AM(+1d) |
| 10:00 AM | 5:00 AM(+1d) |
| 11:00 AM | 6:00 AM(+1d) |
| 12:00 PM | 7:00 AM(+1d) |
| 1:00 PM | 8:00 AM(+1d) |
| 2:00 PM | 9:00 AM(+1d) |
| 3:00 PM | 10:00 AM(+1d) |
| 4:00 PM | 11:00 AM(+1d) |
| 5:00 PM | 12:00 PM(+1d) |
| 6:00 PM | 1:00 PM(+1d) |
| 7:00 PM | 2:00 PM(+1d) |
| 8:00 PM | 3:00 PM(+1d) |
| 9:00 PM | 4:00 PM(+1d) |
| 10:00 PM | 5:00 PM(+1d) |
| 11:00 PM | 6:00 PM(+1d) |
How to Convert Hawaii Standard Time to Korea Standard Time
Formula
To convert Hawaii Standard Time (HST) to Korea Standard Time (KST): Convert HST to KST
About Hawaii Standard Time (HST)
Hawaii Standard Time (HST, IANA: Pacific/Honolulu) is the time zone for the State of Hawaii and the Aleutian Islands of Alaska west of 169.5°W. HST is UTC-10:00 year-round and does not observe Daylight Saving Time per Hawaii Revised Statutes §1-31 (Hawaii opted out of the Uniform Time Act of 1966). When the US mainland switches to Daylight Saving Time in March, the offset from Hawaii to the West Coast (Pacific Time) becomes 3 hours instead of the standard 2 hours. Honolulu sees solar noon at approximately 12:30 PM HST in summer. HST is the same offset as Cook Island Time (CKT) and Tahiti Time (TAHT) in French Polynesia, allowing easy mental conversion across the central Pacific. Time-sensitive activities affected by HST include Pacific tsunami warning system coordination per NOAA NTWC, US military operations from Joint Base Pearl Harbor-Hickam, and the Mauna Kea astronomical observatories' nightly observing 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.