Sunrise and Sunset times in Ulsan, Korea, South 
Ulsan
🌤 Possibly a moderately beautiful sunset.
Ulsan, Korea, South
1 061 000 people
Current temperature 26 ° C 
Patchy rain nearby
Today:
 Sunrise: 05:57:07
|
 Sunset: 18:46:28
|
Day Length: 12h 49m 21s
Time zone: Asia/Seoul, UTC 9 h.
Latitude: 35.5467, Longitude: 129.317
| Date | Sunrise | Solar Noon | Sunset | Day length |
|---|---|---|---|---|
| 2025-Sep-01, Monday | 05:54:52 | 12:22:46 | 18:50:40 | 12h 55m 48s |
| 2025-Sep-02, Tuesday | 05:55:37 | 12:22:27 | 18:49:16 | 12h 53m 39s |
| 2025-Sep-03, Wednesday | 05:56:22 | 12:22:07 | 18:47:52 | 12h 51m 30s |
| 2025-Sep-04, Thursday | 05:57:07 | 12:21:47 | 18:46:28 | 12h 49m 21s |
| 2025-Sep-05, Friday | 05:57:52 | 12:21:27 | 18:45:03 | 12h 47m 11s |
| 2025-Sep-06, Saturday | 05:58:37 | 12:21:07 | 18:43:37 | 12h 45m 0s |
| 2025-Sep-07, Sunday | 05:59:22 | 12:20:47 | 18:42:12 | 12h 42m 50s |
| 2025-Sep-08, Monday | 06:00:07 | 12:20:26 | 18:40:46 | 12h 40m 39s |
| 2025-Sep-09, Tuesday | 06:00:51 | 12:20:05 | 18:39:19 | 12h 38m 28s |
| 2025-Sep-10, Wednesday | 06:01:36 | 12:19:44 | 18:37:53 | 12h 36m 17s |
| 2025-Sep-11, Thursday | 06:02:21 | 12:19:23 | 18:36:26 | 12h 34m 5s |
| 2025-Sep-12, Friday | 06:03:06 | 12:19:02 | 18:34:58 | 12h 31m 52s |
| 2025-Sep-13, Saturday | 06:03:51 | 12:18:41 | 18:33:31 | 12h 29m 40s |
| 2025-Sep-14, Sunday | 06:04:36 | 12:18:20 | 18:32:04 | 12h 27m 28s |
| 2025-Sep-15, Monday | 06:05:20 | 12:17:58 | 18:30:36 | 12h 25m 16s |
| 2025-Sep-16, Tuesday | 06:06:05 | 12:17:37 | 18:29:08 | 12h 23m 3s |
| 2025-Sep-17, Wednesday | 06:06:50 | 12:17:15 | 18:27:40 | 12h 20m 50s |
| 2025-Sep-18, Thursday | 06:07:35 | 12:16:54 | 18:26:12 | 12h 18m 37s |
| 2025-Sep-19, Friday | 06:08:21 | 12:16:32 | 18:24:44 | 12h 16m 23s |
| 2025-Sep-20, Saturday | 06:09:06 | 12:16:11 | 18:23:16 | 12h 14m 10s |
| 2025-Sep-21, Sunday | 06:09:51 | 12:15:50 | 18:21:48 | 12h 11m 57s |
| 2025-Sep-22, Monday | 06:10:37 | 12:15:28 | 18:20:20 | 12h 9m 43s |
| 2025-Sep-23, Tuesday | 06:11:22 | 12:15:07 | 18:18:53 | 12h 7m 31s |
| 2025-Sep-24, Wednesday | 06:12:08 | 12:14:46 | 18:17:25 | 12h 5m 17s |
| 2025-Sep-25, Thursday | 06:12:54 | 12:14:26 | 18:15:57 | 12h 3m 3s |
| 2025-Sep-26, Friday | 06:13:40 | 12:14:05 | 18:14:30 | 12h 0m 50s |
| 2025-Sep-27, Saturday | 06:14:26 | 12:13:44 | 18:13:03 | 11h 58m 37s |
| 2025-Sep-28, Sunday | 06:15:13 | 12:13:24 | 18:11:36 | 11h 56m 23s |
| 2025-Sep-29, Monday | 06:15:59 | 12:13:04 | 18:10:09 | 11h 54m 10s |
| 2025-Sep-30, Tuesday | 06:16:46 | 12:12:44 | 18:08:42 | 11h 51m 56s |
Day length in Ulsan during the year on the chart:
Ulsan on Korea, South map:
Largest Populated Areas in Korea, South
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Daylight Hours FAQ: 10 Most Googled Questions Answered
Daylight hours refer to the period between sunrise and sunset. This duration changes throughout the year based on season and geographic location.
Earth's 23.5° axial tilt causes uneven sunlight distribution. Your hemisphere receives less direct sunlight in winter (shorter days) and more in summer (longer days).
Northern Hemisphere: June 20-22 (summer solstice).
Southern Hemisphere: December 21-23.
Near polar circles, the sun doesn't set for 24 hours.
Northern Hemisphere: December 21-22 (winter solstice).
Southern Hemisphere: June 20-21.
The closer to poles, the more extreme variations:
- Equator: ~12-hour days year-round
- Polar regions: Midnight sun/polar nights occur
Miami's lower latitude means:
- Winter days are longer than NY's
- Summer days are slightly shorter
During equinoxes:
- Spring: March 20-21
- Fall: September 22-23
Most rapid change near equinoxes: 2-4 minutes daily.
Slowest change near solstices: <1 minute daily.
Reliable tools:
- Timeanddate.com
- SunCalc.org
- Photographer's Ephemeris app
Yes. Reduced winter sunlight may cause:
- Seasonal Affective Disorder (SAD)
- Vitamin D deficiency
Solution: Light therapy lamps & midday walks