Korea's DST History
South Korea has a long and somewhat complicated history with daylight saving time. Unlike Japan, which abolished DST in one clean break in 1952, Korea observed DST off and on for nearly four decades before finally ending the practice in 1988.
Timeline of Korean DST
- 1948–1951: First period of DST during the U.S. military government presence and early Republic of Korea years.
- 1955–1960: DST resumed under the Rhee government for economic and productivity reasons.
- 1961–1987: Intermittent observance, with DST not consistently applied throughout this period. Different governments adopted different approaches.
- 1987: Last year of DST in South Korea.
- 1988: DST abolished, coinciding with the Seoul Summer Olympics. South Korea has not observed DST since.
The 1988 Olympic Connection
The Seoul Summer Olympics of 1988 is often cited as a turning point in Korea's DST history. In preparation for the games, officials sought to present Korea as a modern, stable nation with predictable time standards. The decision to permanently abolish DST was part of broader rationalization of administrative and infrastructure systems surrounding the Olympics. The DST abolition took effect at the end of 1987/beginning of 1988.
North Korea's Time Situation
North Korea has its own distinctive time history. In 2015, North Korea introduced "Pyongyang Time" (UTC+8:30) — a half-hour offset intended as a symbolic break from "Japanese imperialism," as Japan had imposed its time zone on Korea during colonial rule. In 2018, ahead of inter-Korean summits, North Korea reverted to UTC+9 (the time zone shared by South Korea and Japan) to facilitate practical coordination. North Korea does not observe DST.
Current Status: Korea Standard Time
South Korea operates on Korea Standard Time (KST, UTC+9) year-round, identical to Japan Standard Time. There is no daylight saving time adjustment. KST is one of the most stable major time zones in the world — it has not changed its offset since 1988.
DST Proposals in Modern Korea
Periodic proposals to reintroduce DST in South Korea have been made, primarily by business groups seeking better alignment with European trading partners (whose DST periods create temporary time gaps). These proposals have not gained legislative traction. Public opinion surveys in Korea generally show low support for reintroducing DST, with concerns about health effects and disruption to daily life.