KST Timezone Converter
Translate Korea Standard Time into overseas working hours for calls, launches, and handoffs.
Source (Seoul KST)
2026-05-17 Sun 15:19:38
Visible cities
UTC
Reference
2026-05-17 Sun
06:19:38
New York
USA
2026-05-17 Sun
02:19:38
DST
Los Angeles
USA
2026-05-16 Sat
23:19:38
DST
London
UK
2026-05-17 Sun
07:19:38
DST
Tokyo
Japan
2026-05-17 Sun
15:19:38
Singapore
Singapore
2026-05-17 Sun
14:19:38
Sydney
Australia
2026-05-17 Sun
16:19:38
DST
Korea does not observe daylight saving. Cities marked DST shift by an hour seasonally.
How to use this result
KST is UTC+9 and does not observe daylight saving. The offset to Korea is fixed year-round.
Counterpart cities that observe DST shift by an hour at the season boundary. Date matters: a March meeting between Seoul and London is not the same offset as a January meeting.
For automation schedules and launch windows, store the source time in UTC and translate to KST and counterparts on display. That avoids off-by-one-hour bugs at DST transitions.
Examples
US Pacific handoff
US Eastern call
London standup
Tokyo overlap
Common questions
Q.Does Korea use daylight saving?
No. KST is UTC+9 throughout the year, so offsets to Seoul never shift on the Korean side.
Q.How do I avoid DST surprises?
Pick a specific date when scheduling. Same wall-clock times in Seoul map to different UTC moments depending on whether the counterpart is in standard or daylight time.
Data handling notice
Reference calculation: this tool provides quick estimates from your inputs and common public formulas.
No server storage: calculation inputs are only used to display the result and are not stored by ZHS.
Verification required: legal, tax, payroll, real-estate, or financial decisions require current official sources and expert review.