KST: Korea Standard Time
Korea Standard Time is UTC+9.
South Korea, with no daylight saving time. North Korea uses the same offset.
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 PST (UTC−8). Pacific Time switches to daylight saving time on 14 March 2027.
9:00 am to 5:00 pm KST is 4:00 pm PST the day before to 12:00 am PST.
- 8:00 am KST3:00 pm PST the day before
- 9:00 am KST4:00 pm PST the day before
- 10:00 am KST5:00 pm PST the day before
- 12:00 pm KST7:00 pm PST the day before
- 3:00 pm KST10:00 pm PST the day before
- 5:00 pm KST12:00 am PST
Live: the current time
Korea Standard TimeReference
South Korea
Wed, Nov 4
KST UTC+9ReferenceWorking hoursPacific Time
US & Canada
Tue, Nov 3Previous day
PST UTC−8−17h from Korea Standard TimeOutside working hours
Best time to meet 9:00 AM–10:00 AM in Korea Standard Time on Wed, Nov 4, when everyone is inside working hours.
Book a meeting in this windowWorking 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 PST. Hatched cells are working hours (9:00 am to 5:00 pm); rows with the accent bar are working hours in both zones.
| KST | PSTUntil 14 March 2027 | PDTFrom 14 March 2027 |
|---|---|---|
| 12:00 am KST | 7:00 am PST(day before) | 8:00 am PDT(day before) |
| 1:00 am KST | 8:00 am PST(day before) | 9:00 am PDT(day before) |
| 2:00 am KST | 9:00 am PST(day before) | 10:00 am PDT(day before) |
| 3:00 am KST | 10:00 am PST(day before) | 11:00 am PDT(day before) |
| 4:00 am KST | 11:00 am PST(day before) | 12:00 pm PDT(day before) |
| 5:00 am KST | 12:00 pm PST(day before) | 1:00 pm PDT(day before) |
| 6:00 am KST | 1:00 pm PST(day before) | 2:00 pm PDT(day before) |
| 7:00 am KST | 2:00 pm PST(day before) | 3:00 pm PDT(day before) |
| 8:00 am KST | 3:00 pm PST(day before) | 4:00 pm PDT(day before) |
| 9:00 am KST | 4:00 pm PST(day before) | 5:00 pm PDT(day before) |
| 10:00 am KST | 5:00 pm PST(day before) | 6:00 pm PDT(day before) |
| 11:00 am KST | 6:00 pm PST(day before) | 7:00 pm PDT(day before) |
| 12:00 pm KST | 7:00 pm PST(day before) | 8:00 pm PDT(day before) |
| 1:00 pm KST | 8:00 pm PST(day before) | 9:00 pm PDT(day before) |
| 2:00 pm KST | 9:00 pm PST(day before) | 10:00 pm PDT(day before) |
| 3:00 pm KST | 10:00 pm PST(day before) | 11:00 pm PDT(day before) |
| 4:00 pm KST | 11:00 pm PST(day before) | 12:00 am PDT |
| 5:00 pm KST | 12:00 am PST | 1:00 am PDT |
| 6:00 pm KST | 1:00 am PST | 2:00 am PDT |
| 7:00 pm KST | 2:00 am PST | 3:00 am PDT |
| 8:00 pm KST | 3:00 am PST | 4:00 am PDT |
| 9:00 pm KST | 4:00 am PST | 5:00 am PDT |
| 10:00 pm KST | 5:00 am PST | 6:00 am PDT |
| 11:00 pm KST | 6:00 am PST | 7:00 am PDT |
Best times to meet
Your working hours overlap for 1 hour, from 9:00 am KST (4:00 pm PST the day before) to 10:00 am KST (5:00 pm PST the day before). That's the best window for a meeting.
About these time zones
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.
How the difference changes
Right now PST is 17 hours behind KST. From 14 March 2027, when US clocks go forward, the difference becomes 16 hours.
Frequently asked questions
Ask a questionPacific Time is 16 hours behind Korea Standard Time from March to November, and 17 hours behind the rest of the year. KST is UTC+9, and PST is UTC−8.
9:00 am KST is 4:00 pm PST the day before.
Yes, because Pacific Time changes its clocks and Korea Standard Time doesn't. Pacific Time is 16 hours behind Korea Standard Time from March to November, and 17 hours behind the rest of the year.
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