Los Angeles is currently 16 hours behind Seoul. Convert time between Los Angeles and Seoul, see the exact difference, and find the best hours for calls and meetings.
Los Angeles uses Pacific Daylight Time. Seoul uses Korean Standard Time. Los Angeles time is 16 hours behind Seoul. So, when it is 12:00 AM in Los Angeles, it is 4:00 PM in Seoul.
Common Los Angeles times and their Seoul equivalents.
| Los Angeles Time | Seoul Time |
|---|---|
| 12:00 AM Los Angeles | 4:00 PM Seoul |
| 1:00 AM Los Angeles | 5:00 PM Seoul |
| 2:00 AM Los Angeles | 6:00 PM Seoul |
| 3:00 AM Los Angeles | 7:00 PM Seoul |
| 4:00 AM Los Angeles | 8:00 PM Seoul |
| 5:00 AM Los Angeles | 9:00 PM Seoul |
| 6:00 AM Los Angeles | 10:00 PM Seoul |
| 7:00 AM Los Angeles | 11:00 PM Seoul |
| 8:00 AM Los Angeles | 12:00 AM Seoul |
| 9:00 AM Los Angeles | 1:00 AM Seoul |
| 10:00 AM Los Angeles | 2:00 AM Seoul |
| 11:00 AM Los Angeles | 3:00 AM Seoul |
| 12:00 PM Los Angeles | 4:00 AM Seoul |
| 1:00 PM Los Angeles | 5:00 AM Seoul |
| 2:00 PM Los Angeles | 6:00 AM Seoul |
| 3:00 PM Los Angeles | 7:00 AM Seoul |
| 4:00 PM Los Angeles | 8:00 AM Seoul |
| 5:00 PM Los Angeles | 9:00 AM Seoul |
| 6:00 PM Los Angeles | 10:00 AM Seoul |
| 7:00 PM Los Angeles | 11:00 AM Seoul |
| 8:00 PM Los Angeles | 12:00 PM Seoul |
| 9:00 PM Los Angeles | 1:00 PM Seoul |
| 10:00 PM Los Angeles | 2:00 PM Seoul |
| 11:00 PM Los Angeles | 3:00 PM Seoul |
Los Angeles and the US West Coast use Pacific Time — Pacific Standard Time (PST, UTC−8) in winter and Pacific Daylight Time (PDT, UTC−7) in summer. The transition follows the same US schedule: forward in March, back in November. Silicon Valley operates in this timezone, making PT a reference point for the tech industry.
Seoul uses Korea Standard Time (KST, UTC+9) year-round, identical to Tokyo in offset. South Korea does not observe Daylight Saving Time. The consistent UTC+9 offset means Seoul–Tokyo scheduling has zero drift throughout the year.
Both Los Angeles and Seoul may observe Daylight Saving Time, which means the offset between them can change twice a year. Here is what to expect each season.
| Period | Note | Los Angeles | Seoul | Offset |
|---|---|---|---|---|
| Nov – Mar | Both on standard time | PST (UTC−8) | GMT+9 (UTC+9) | 17 hours |
| Mar – late Mar | US clocks forward, some zones still on standard | PDT (UTC−7) | GMT+9 (UTC+9) | 16 hours |
| Late Mar – Oct current | Both on summer / daylight time | PDT (UTC−7) | GMT+9 (UTC+9) | 16 hours |
| Late Oct – early Nov | Clocks transitioning — check exact date | PST (UTC−8) | GMT+9 (UTC+9) | 17 hours |
The transition window typically lasts 1–2 weeks in spring and autumn. If you have a recurring weekly meeting near a clock change, verify the exact date to avoid a missed call.
Los Angeles is currently 16 hours behind Seoul. Los Angeles uses Pacific Daylight Time (UTC−7) and Seoul uses Korean Standard Time (UTC+9).
Los Angeles and Seoul have no standard 9 am–6 pm business-hour overlap. Consider scheduling during early morning or late evening, or use a rotating schedule to share the inconvenience.
When it is 9:00 AM in Los Angeles, it is 1:00 am in Seoul (previous day). Los Angeles is 16 hours behind Seoul.
When it is 5:00 PM in Seoul, it is 1:00 am in Los Angeles.
Los Angeles observes Daylight Saving Time but Seoul does not. This means the offset between the two cities changes by one hour when Los Angeles transitions its clocks — typically in late March (spring forward) and late October (fall back). Always verify the current offset when scheduling around those dates.