About Korea Standard Time
- Standard offset
- UTC+9
- Abbreviation
- KST
- Observes DST
- No
Used in: South Korea.
South Korea shares Japan's clock, a fact with a tangled history: the +9 offset dates to the Japanese colonial period, and South Korea briefly pulled back to +8:30 in the 1950s to assert its independence before returning to +9.
Daylight saving time
Korea Standard Time does not observe daylight saving time — it stays at UTC+9 all year.
See the daylight saving time page for transition dates across every time zone.
Daylight today
Sun times at the representative location for Korea Standard Time.
- Sunrise
- 5:12 AM
- Sunset
- 7:51 PM
- Day length
- 14h 38m
Major cities in Korea Standard Time
The current local time in these cities matches Korea Standard Time.
Browse all cities to see the current local time anywhere.
Convert Korea Standard Time to
Frequently asked questions
- What is Korea Standard Time (KST)?
- Korea Standard Time (KST) is UTC+9 year-round — no daylight saving — keeping Seoul on the same clock as Tokyo.
- What is KST in UTC?
- KST is UTC+9, the same all year.
- Does Korea Standard Time observe daylight saving time?
- No. Korea Standard Time stays at UTC+9 year-round.