Seoul is 16 hours ahead of Los Angeles from mid-March to early November, and 17 hours the rest of the year.
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Quick reference
| LOS ANGELES | SEOUL · MID-MAR–EARLY NOV | SEOUL · REST OF YEAR |
|---|---|---|
| 9:00 am | 1:00 am next day | 2:00 am next day |
| 12:00 pm | 4:00 am next day | 5:00 am next day |
| 3:00 pm | 7:00 am next day | 8:00 am next day |
| 6:00 pm | 10:00 am next day | 11:00 am next day |
| 9:00 pm | 1:00 pm next day | 2:00 pm next day |
Questions
16 hours from mid-March to early November, while Los Angeles is on Pacific Daylight Time (PDT). 17 hours the rest of the year, while Los Angeles is on Pacific Standard Time (PST).
1am the next day from mid-March to early November, and 2am the next day the rest of the year.
Only Los Angeles. It moves to PDT (UTC-7) in mid-March and back to PST (UTC-8) in early November. Seoul stays on Korea Standard Time (KST, UTC+9) all year.