Time difference between Los Angeles and Ulsan
+16 hUlsan is 16 hours ahead of Los Angeles.
Observatory log
Los Angeles and Ulsan, compared
- 01Difference now
Ulsan is 16 hours ahead of Los Angeles.
Los Angeles: PDT (UTC−7) · Ulsan: KST (UTC+9)
Next changeFrom 1 November 2026: Ulsan is 17 hours ahead of Los Angeles.
- 02Through 2026–2027
- 1 January 2026 – 8 March 2026+17 h
- 8 March 2026 – 1 November 2026+16 h
- 1 November 2026 – 14 March 2027+17 h
- 14 March 2027 – 7 November 2027+16 h
- 7 November 2027 – 31 December 2027+17 h
Difference of Ulsan from Los Angeles. It changes on the days either place changes its clocks (dates local to that place).
- 03Shared working hours
Their working days never overlap.
Counted as 09:00–17:00 local time on each place’s own working days, for the next seven days.
- 04Best time to meet
14:00–22:00 in Los Angeles = 06:00–14:00 in Ulsan
No shared office hours: this is early or late for one side (Mon–Thu).
- 05Weekend
Los Angeles: Saturday and Sunday
Ulsan: Saturday and Sunday
24 hours
A day in Los Angeles, in Ulsan
| Los Angeles | Ulsan | Working hours, evening, night or weekend in each place |
|---|---|---|
| 00:00 | 16:00 | |
| 01:00 | 17:00 | |
| 02:00 | 18:00 | |
| 03:00 | 19:00 | |
| 04:00 | 20:00 | |
| 05:00 | 21:00 | |
| 06:00 | 22:00 | |
| 07:00 | 23:00 | |
| 08:00 | 00:00Tomorrow | |
| 09:00 | 01:00Tomorrow | |
| 10:00 | 02:00Tomorrow | |
| 11:00 | 03:00Tomorrow | |
| 12:00 | 04:00Tomorrow | |
| 13:00 | 05:00Tomorrow | |
| 14:00 | 06:00Tomorrow | |
| 15:00 | 07:00Tomorrow | |
| 16:00 | 08:00Tomorrow | |
| 17:00 | 09:00Tomorrow | |
| 18:00 | 10:00Tomorrow | |
| 19:00 | 11:00Tomorrow | |
| 20:00 | 12:00Tomorrow | |
| 21:00 | 13:00Tomorrow | |
| 22:00 | 14:00Tomorrow | |
| 23:00 | 15:00Tomorrow |
Working hoursEarly or eveningNightWeekend
Questions
Asked about Los Angeles and Ulsan
What is the time difference between Los Angeles and Ulsan?
Ulsan is 16 hours ahead of Los Angeles. This holds until 1 November 2026; then Ulsan is 17 hours ahead of Los Angeles.
What is the best time for a call between Los Angeles and Ulsan?
No shared office hours. The least awkward windows, early or late for one side: Mon–Thu: 14:00–22:00 in Los Angeles = 06:00–14:00 in Ulsan (tomorrow) · 8 h.
When does the time difference between Los Angeles and Ulsan change?
In the next 12 months it changes on: 1 November 2026 (+17 h); 14 March 2027 (+16 h).