PST to KST Converter
Pick a date and a Pacific time to read the clock in Seoul, Busan or Incheon. Korea keeps one offset all year; the tool tracks the US clock changes.
KSTKorea Standard Time
––:––
- KST
- Also called Korea Standard Time · UTC+9
- South Korea's single time zone, 9 hours ahead of UTC, with no daylight saving. It is 17 hours ahead of Pacific Standard Time and 16 hours ahead of Pacific Daylight Time, so a California evening is the next morning in Seoul.
Pacific to Seoul hour table
| PST time | PST · KST | PDT · KST |
|---|---|---|
| 12:00 AM | 5:00 PM | 4:00 PM |
| 1:00 AM | 6:00 PM | 5:00 PM |
| 2:00 AM | 7:00 PM | 6:00 PM |
| 3:00 AM | 8:00 PM | 7:00 PM |
| 4:00 AM | 9:00 PM | 8:00 PM |
| 5:00 AM | 10:00 PM | 9:00 PM |
| 6:00 AM | 11:00 PM | 10:00 PM |
| 7:00 AM | 12:00 AM+1 next day | 11:00 PM |
| 8:00 AM | 1:00 AM+1 next day | 12:00 AM+1 next day |
| 9:00 AM | 2:00 AM+1 next day | 1:00 AM+1 next day |
| 10:00 AM | 3:00 AM+1 next day | 2:00 AM+1 next day |
| 11:00 AM | 4:00 AM+1 next day | 3:00 AM+1 next day |
| 12:00 PM | 5:00 AM+1 next day | 4:00 AM+1 next day |
| 1:00 PM | 6:00 AM+1 next day | 5:00 AM+1 next day |
| 2:00 PM | 7:00 AM+1 next day | 6:00 AM+1 next day |
| 3:00 PM | 8:00 AM+1 next day | 7:00 AM+1 next day |
| 4:00 PM | 9:00 AM+1 next day | 8:00 AM+1 next day |
| 5:00 PM | 10:00 AM+1 next day | 9:00 AM+1 next day |
| 6:00 PM | 11:00 AM+1 next day | 10:00 AM+1 next day |
| 7:00 PM | 12:00 PM+1 next day | 11:00 AM+1 next day |
| 8:00 PM | 1:00 PM+1 next day | 12:00 PM+1 next day |
| 9:00 PM | 2:00 PM+1 next day | 1:00 PM+1 next day |
| 10:00 PM | 3:00 PM+1 next day | 2:00 PM+1 next day |
| 11:00 PM | 4:00 PM+1 next day | 3:00 PM+1 next day |
Korean release times in California
Music, drama and game releases from Korea are usually announced in KST, and an evening slot in Seoul lands in the middle of the night on the West Coast. A 6:00 PM KST release arrives at 1:00 AM Pacific in winter and 2:00 AM in summer, on the same calendar date as in Korea.
A Seoul midnight launch is 7:00 AM the previous day in Los Angeles on PST, or 8:00 AM on PDT. When a date is given only in KST, check whether it is still the day before in California.
The 16- and 17-hour seasons
Korea has kept UTC+9 without summer time since 1988. California is on PST, UTC−8, from the first Sunday of November to the second Sunday of March, and on PDT, UTC−7, the rest of the year, as overseen by the US Department of Transportation. The list below shows the exact stretches.
- Dec 31, 2025 – Mar 8, 2026PST UTC−8 · KST UTC+9Difference: +17 h
- Mar 8, 2026 – Nov 1, 2026PDT UTC−7 · KST UTC+9Difference: +16 h
- Nov 1, 2026 – Mar 14, 2027PST UTC−8 · KST UTC+9Difference: +17 h
- Mar 14, 2027 – Nov 7, 2027PDT UTC−7 · KST UTC+9Difference: +16 h
- Nov 7, 2027 – Dec 31, 2027PST UTC−8 · KST UTC+9Difference: +17 h
Offsets in 2026 – 2027, from the IANA time zone data in your browser's engine
Meetings with Seoul
Do
- Meet at 4:00–6:00 PM Pacific, which is the next morning in Seoul.
- Write both weekdays, for example Sun 5:00 PM PDT / Mon 9:00 AM KST.
Avoid
- Booking a Friday-afternoon Pacific call as a Friday call for Seoul; it is Saturday there.
- Leaving a recurring call unchanged after the US clock change; Seoul's time shifts by one hour.
The Seoul, Seattle and Vancouver clocks show the live times. Tokyo gives the same result at PST to JST, and KST to PST runs the other way.
PST to KST questions
What is the Los Angeles to Seoul time gap?
Seoul is 17 hours ahead of Los Angeles while California is on PST and 16 hours ahead while it is on PDT.
What is 5:00 PM Pacific in Korea?
It is 10:00 AM the next day in Korea during PST and 9:00 AM the next day during PDT.
When is 6:00 PM KST in California?
6:00 PM in Seoul is 1:00 AM the same day in California on PST, and 2:00 AM on PDT.
Does Korea use daylight saving?
Not since 1988. Korea Standard Time is UTC+9 all year.
Do Seoul and Tokyo share a clock?
Both are UTC+9, so Seoul and Tokyo always show the same time.