Asia · South Korea
Current time in Ulsan
Korean Standard Time.
Tuesday, June 2, 2026
Daylight saving
Not observed
This zone has no seasonal clock change.
About Ulsan time
Ulsan keeps one clock.
Ulsan sits on South Korea’s southeastern coast, where the day usually starts bright and early to make the most of long summer workdays and tight winter daylight. Even without daylight-saving shifts, the city’s annual light swing—nearly five hours between the longest and shortest days—can noticeably change morning commutes and after-work energy.
Frequently asked questions
Common questions about Ulsan's time zone, daylight saving rules, and scheduling across it. Can't find what you need? Email [email protected].
- Is Ulsan always in Korea Standard Time?
- Yes, Ulsan has never adopted daylight saving and follows a single offset year‑round, so clocks don’t change in spring or autumn.
- When does the sun rise earliest in Ulsan?
- Around early June, sunrise can be as early as 5:00–5:15 AM, and by late June it’s often close to 5:05–5:10 AM, giving very early birds a bright start.
- When are Ulsan’s latest sunsets?
- In late June to early July, sunset often stays close to 19:45, extending evening daylight well past dinner and commute times.
- How short do winter days feel in Ulsan?
- Around December, sunrise slides closer to 7:15–7:25 AM and sunset often falls near 17:10–17:20, shrinking the visible workday but boosting artificial lighting and indoor routines.
- Does Ulsan’s latitude affect daily routines?
- At about 35.5°N latitude, Ulsan’s moderate seasons create noticeable but not extreme shifts in daylight, which subtly reshapes store hours, commute patterns, and after‑work recreation.
- How does Ulsan interact with other South Korean cities?
- All of South Korea shares one official time, so Ulsan, Seoul, Busan, and other cities are perfectly in sync for commutes, broadcasts, and nationwide meetings.
- Why do some regions share Ulsan’s same daily schedule?
- Because daylight saving is not observed anywhere on the Korean Peninsula, the country’s fixed offset keeps identical business hours, TV schedules, and morning commutes nationwide.
- Which time zones match Ulsan now?
- Northern Japan, parts of eastern Russia such as Yakutsk, and Pyongyang often run at the same nominal offset as Ulsan, clustering east Asia into roughly the same business and daylight rhythm.
- Are summer evenings noticeably longer on the coast?
- Coastline geography doesn’t alter Ulsan’s clock time, but the flat sea horizon can make lingering twilight feel even longer, stretching evenings for post‑work walks or outdoor dining.
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