KST to PST converter
When it's 9:00 am in Seoul, it's 5:00 pm the day before in Los Angeles (4:00 pm the day before from November to March). Your working days don't overlap at all, so someone starts early or stays late for every call.
Convert Korea Standard Time (KST) to Pacific Standard Time (PST) for any date and time.
Pacific Time is 16 hours behind Korea Standard Time from March to November, and 17 hours behind the rest of the year.
Right now KST is UTC+9 and the West Coast is on PDT (UTC−7). Pacific Time switches back to standard time on 1 November 2026.
US clocks go back on 1 November 2026. From then, PST is 17 hours behind KST.
9:00 am to 5:00 pm KST is 5:00 pm PDT the day before to 1:00 am PDT.
- 8:00 am KST is 4:00 pm PDT the day before
- 9:00 am KST is 5:00 pm PDT the day before
- 10:00 am KST is 6:00 pm PDT the day before
- 12:00 pm KST is 8:00 pm PDT the day before
- 3:00 pm KST is 11:00 pm PDT the day before
- 5:00 pm KST is 1:00 am PDT
Hours in Korea Standard Time, Fri, Oct 23
Korea Standard Time
South Korea
Fri, Oct 23
KST · UTC+9ReferenceOutside working hoursPacific Time
US & Canada
Fri, Oct 23
PDT · UTC−7−16h from Korea Standard TimeOutside working hours
No shared working hours on Fri, Oct 23. Pick the slot closest to everyone's working day, or let each person pick from your availability.
Share a booking link insteadWorking hours: 9:00 AM–5:00 PM, Monday to FridayEveryone at work
KST to PST conversion table
Every hour of the day in KST, converted to PDT. Shaded cells are working hours (9:00 am to 5:00 pm); green rows are working hours in both zones.
| KST | PDTUntil 1 November 2026; From 14 March 2027 | PST1 November 2026 to 14 March 2027 |
|---|---|---|
| 12:00 am KST | 8:00 am PDT(day before) | 7:00 am PST(day before) |
| 1:00 am KST | 9:00 am PDT(day before) | 8:00 am PST(day before) |
| 2:00 am KST | 10:00 am PDT(day before) | 9:00 am PST(day before) |
| 3:00 am KST | 11:00 am PDT(day before) | 10:00 am PST(day before) |
| 4:00 am KST | 12:00 pm PDT(day before) | 11:00 am PST(day before) |
| 5:00 am KST | 1:00 pm PDT(day before) | 12:00 pm PST(day before) |
| 6:00 am KST | 2:00 pm PDT(day before) | 1:00 pm PST(day before) |
| 7:00 am KST | 3:00 pm PDT(day before) | 2:00 pm PST(day before) |
| 8:00 am KST | 4:00 pm PDT(day before) | 3:00 pm PST(day before) |
| 9:00 am KST | 5:00 pm PDT(day before) | 4:00 pm PST(day before) |
| 10:00 am KST | 6:00 pm PDT(day before) | 5:00 pm PST(day before) |
| 11:00 am KST | 7:00 pm PDT(day before) | 6:00 pm PST(day before) |
| 12:00 pm KST | 8:00 pm PDT(day before) | 7:00 pm PST(day before) |
| 1:00 pm KST | 9:00 pm PDT(day before) | 8:00 pm PST(day before) |
| 2:00 pm KST | 10:00 pm PDT(day before) | 9:00 pm PST(day before) |
| 3:00 pm KST | 11:00 pm PDT(day before) | 10:00 pm PST(day before) |
| 4:00 pm KST | 12:00 am PDT | 11:00 pm PST(day before) |
| 5:00 pm KST | 1:00 am PDT | 12:00 am PST |
| 6:00 pm KST | 2:00 am PDT | 1:00 am PST |
| 7:00 pm KST | 3:00 am PDT | 2:00 am PST |
| 8:00 pm KST | 4:00 am PDT | 3:00 am PST |
| 9:00 pm KST | 5:00 am PDT | 4:00 am PST |
| 10:00 pm KST | 6:00 am PDT | 5:00 am PST |
| 11:00 pm KST | 7:00 am PDT | 6:00 am PST |
Best times to meet
A 9-to-5 working day in KST and one in PDT don't overlap. The closest fit is 9:00 am KST (5:00 pm PDT the day before), when one of you starts early or stays late.
About these time zones
KST: Korea Standard Time
Korea Standard Time is UTC+9.
South Korea, with no daylight saving time. North Korea uses the same offset.
PST: Pacific Standard Time
Pacific Standard Time is UTC−8. PST is also used for Philippine Standard Time (UTC+8) and sometimes for Pakistan Standard Time (UTC+5). This page converts US Pacific Time.
California, Washington, Oregon and Nevada, plus British Columbia in Canada and Baja California in Mexico. PT is the short form people use for the whole zone.
Most places on Pacific Time are on PDT (UTC−7) right now, not PST. People still say "PST" all year, so the times on this page follow the clocks and show PDT until 1 November 2026.
How the difference changes
Right now PDT is 16 hours behind KST. From 1 November 2026, when US clocks go back, the difference becomes 17 hours. From 14 March 2027, when US clocks go forward, the difference becomes 16 hours.