Current Local Time in Ulsan
South Korea Asia/Seoul KST UTC+9 No clock change
8:30:00 PM
Sunday, August 2, 2026
Nighttime UTC+9 (+09:00)
Static values shown for ; your browser updates them to the current second.
UTC offset now
UTC+9
Same on every date
Abbreviation
KST
No seasonal variant
Daylight saving
No clock change
Ulsan never changes its clocks
IANA time zone
Asia/Seoul
South Korea · Asia
Ulsan time zone
Because South Korea does not operate daylight saving time in Asia/Seoul, Ulsan sits at UTC+9 (KST) on every date of 2026. Scheduling across this zone is stable year-round.
- IANA time zone
- Asia/Seoul
- Offset in standard time
- UTC+9 (KST)
- Daylight saving time
- Not observed — no clock change
- Most recent clock change
- None on record in recent years
- Next clock change
- None scheduled — clocks stay as they are
- When it is 12:00 UTC
- 9:00 PM in January · 9:00 PM in July
Clock changes in Ulsan, 2026–2028
Full record for Ulsan → ten years back and ten forward, with each year's DST window.
No clock change. Ulsan stays on UTC+9 (KST) through 2028 under the rules currently published in the IANA time zone database. Governments do sometimes change these rules, so this page is regenerated from the latest database on every build.
Sun and moon in Ulsan
Computed for 35.5384°, 129.3114° on August 2, 2026.
Sunrise
5:31 AM
Sunset
7:26 PM
Day length
13h 55m
−1m 40s vs yesterday
Solar noon
12:29 PM
Sun at its highest
| Phase | Morning | Evening | Sun's altitude |
|---|---|---|---|
| Astronomical twilight | 3:53 AM | 9:04 PM | −18° to −12° |
| Nautical twilight | 4:29 AM | 8:28 PM | −12° to −6° |
| Civil twilight | 5:03 AM | 7:54 PM | −6° to −0.833° |
| Sunrise / sunset | 5:31 AM | 7:26 PM | −0.833° (upper limb at the horizon) |
Across 2026, daylight in Ulsan runs from about 9h 45m at the shortest day to 14h 34m at the longest.
Moon
Waning gibbous
80% illuminated · 19.1 days into the cycle · waning
- Moonrise
- 9:18 PM
- Moonset
- 8:47 AM
- Next full moon
- Aug 28, 1:19 PM
- Next new moon
- Aug 13, 2:38 AM
Sun and moon figures are computed locally from standard astronomical series (NOAA solar equations and Meeus' lunar terms) — accurate to about a minute at mid latitudes, and less near the poles where the sun crosses the horizon at a shallow angle.
Weather in Ulsan
Loading current weather for Ulsan.
Current weather for Ulsan is unavailable right now. Everything else on this page — local time, time zone rules, sunrise and sunset — is computed locally and unaffected.
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Feels like
- Today's high / low
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- Humidity
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- Wind
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- Tomorrow
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Measured · source Open-Meteo · cached for 30 minutes
Time difference between Ulsan and other cities
Differences are computed from each city's own zone rules, so pairs whose clocks change on different dates show more than one value across the year.
| City | Local time | Difference | Across the year |
|---|---|---|---|
| New York United States | 7:30 AM | −13h | Varies: −13h / −14h |
| Sao Paulo Brazil | 8:30 AM | −12h | Fixed all year |
| London United Kingdom | 12:30 PM | −8h | Varies: −8h / −9h |
| Tel Aviv Israel | 2:30 PM | −6h | Varies: −6h / −7h |
| Cairo Egypt | 2:30 PM | −6h | Varies: −6h / −7h |
| Mumbai India | 5:00 PM | −3:30h | Fixed all year |
| Sydney Australia | 9:30 PM | +1h | Varies: +2h / +1h |
| Los Angeles United States | 4:30 AM | −16h | Varies: −16h / −17h |
Ulsan at a glance
- Country
- South Korea
- Region
- Asia
- Coordinates
- 35.5384° N, 129.3114° E
- IANA time zone
- Asia/Seoul
- Currency
- KRW
- Language
- Korean
- Usual clock notation
- 12-hour
- Also written
- 울산
Only fields we can source are listed; nothing on this page is estimated. Sources are in data sources .
Frequently asked questions
What time is it in Ulsan right now?
The clock at the top of this page shows the current local time in Ulsan, South Korea, updated every second from your device's clock and converted with the Asia/Seoul time zone rules. Ulsan currently runs at UTC+9 (KST) all year round.
What time zone is Ulsan in?
Ulsan uses the IANA time zone Asia/Seoul, written as KST all year. Every time on this page is computed from that zone rather than from a stored offset, so it follows the rules currently published in the time zone database.
What is the UTC offset in Ulsan?
Ulsan stays at UTC+9 throughout the year. Its clocks never move, so the offset shown here is the offset on every date.
Does Ulsan observe daylight saving time?
No. Ulsan does not use daylight saving time — there is no clock change in 2026, so UTC+9 applies on every date. Differences with cities that do change their clocks still move twice a year, because the other city shifts.
What is the time difference between Ulsan and New York?
For most of 2026, New York is 13 hours behind Ulsan. Because the two places change their clocks on different dates, the gap is 14 hours (New York behind Ulsan) from January 1 – March 8 and November 1 – January 1.
What is the time difference between Ulsan and Sao Paulo?
Sao Paulo is 12 hours behind Ulsan, and that gap holds all year — neither city moves its clocks in a way that changes it.
What is the time difference between Ulsan and London?
For most of 2026, London is 8 hours behind Ulsan. Because the two places change their clocks on different dates, the gap is 9 hours (London behind Ulsan) from January 1 – March 29 and October 25 – January 1.
How long is the day in Ulsan?
Day length in Ulsan ranges from about 9h 45m at the shortest day of 2026 to about 14h 34m at the longest. The sunrise and sunset section on this page shows today's figures for latitude 35.54°, longitude 129.31°.