Sunrise and Sunset times in SeaTac, United States 
Today:
 Sunrise: 07:39:57
|
 Sunset: 16:19:17
|
Day Length: 8h 39m 20s
Time zone: America/Los_Angeles, UTC -8 h.
Latitude: 47.4445, Longitude: -122.299
SeaTac
Washington, United States 
29 140 people
| Date | Sunrise | Solar Noon | Sunset | Day length |
|---|---|---|---|---|
| 2025-Dec-01, Monday | 07:36:27 | 11:58:26 | 16:20:24 | 8h 43m 57s |
| 2025-Dec-02, Tuesday | 07:37:39 | 11:58:49 | 16:19:59 | 8h 42m 20s |
| 2025-Dec-03, Wednesday | 07:38:49 | 11:59:13 | 16:19:37 | 8h 40m 48s |
| 2025-Dec-04, Thursday | 07:39:57 | 11:59:37 | 16:19:17 | 8h 39m 20s |
| 2025-Dec-05, Friday | 07:41:03 | 12:00:02 | 16:19:00 | 8h 37m 57s |
| 2025-Dec-06, Saturday | 07:42:08 | 12:00:27 | 16:18:46 | 8h 36m 38s |
| 2025-Dec-07, Sunday | 07:43:11 | 12:00:53 | 16:18:35 | 8h 35m 24s |
| 2025-Dec-08, Monday | 07:44:12 | 12:01:20 | 16:18:27 | 8h 34m 15s |
| 2025-Dec-09, Tuesday | 07:45:11 | 12:01:47 | 16:18:22 | 8h 33m 11s |
| 2025-Dec-10, Wednesday | 07:46:08 | 12:02:14 | 16:18:19 | 8h 32m 11s |
| 2025-Dec-11, Thursday | 07:47:03 | 12:02:41 | 16:18:20 | 8h 31m 17s |
| 2025-Dec-12, Friday | 07:47:56 | 12:03:10 | 16:18:23 | 8h 30m 27s |
| 2025-Dec-13, Saturday | 07:48:46 | 12:03:38 | 16:18:30 | 8h 29m 44s |
| 2025-Dec-14, Sunday | 07:49:34 | 12:04:07 | 16:18:39 | 8h 29m 5s |
| 2025-Dec-15, Monday | 07:50:20 | 12:04:35 | 16:18:51 | 8h 28m 31s |
| 2025-Dec-16, Tuesday | 07:51:03 | 12:05:05 | 16:19:06 | 8h 28m 3s |
| 2025-Dec-17, Wednesday | 07:51:44 | 12:05:34 | 16:19:24 | 8h 27m 40s |
| 2025-Dec-18, Thursday | 07:52:23 | 12:06:03 | 16:19:44 | 8h 27m 21s |
| 2025-Dec-19, Friday | 07:52:58 | 12:06:33 | 16:20:08 | 8h 27m 10s |
| 2025-Dec-20, Saturday | 07:53:32 | 12:07:03 | 16:20:34 | 8h 27m 2s |
| 2025-Dec-21, Sunday | 07:54:02 | 12:07:33 | 16:21:03 | 8h 27m 1s |
| 2025-Dec-22, Monday | 07:54:30 | 12:08:03 | 16:21:35 | 8h 27m 5s |
| 2025-Dec-23, Tuesday | 07:54:55 | 12:08:32 | 16:22:10 | 8h 27m 15s |
| 2025-Dec-24, Wednesday | 07:55:18 | 12:09:02 | 16:22:47 | 8h 27m 29s |
| 2025-Dec-25, Thursday | 07:55:37 | 12:09:32 | 16:23:26 | 8h 27m 49s |
| 2025-Dec-26, Friday | 07:55:54 | 12:10:01 | 16:24:09 | 8h 28m 15s |
| 2025-Dec-27, Saturday | 07:56:08 | 12:10:31 | 16:24:54 | 8h 28m 46s |
| 2025-Dec-28, Sunday | 07:56:20 | 12:11:00 | 16:25:41 | 8h 29m 21s |
| 2025-Dec-29, Monday | 07:56:28 | 12:11:29 | 16:26:31 | 8h 30m 3s |
| 2025-Dec-30, Tuesday | 07:56:34 | 12:11:58 | 16:27:23 | 8h 30m 49s |
| 2025-Dec-31, Wednesday | 07:56:36 | 12:12:27 | 16:28:17 | 8h 31m 41s |
Day length in SeaTac during the year on the chart:
SeaTac on United States map:
Locations in the same time zone America/Los_Angeles
Los Angeles (California), Seattle (Washington), San Francisco (California), San Diego (California), Riverside (California), Las Vegas (Nevada), Portland (Oregon), Sacramento (California), San Jose (California), Fresno (California), Concord (California), Mission Viejo (California), Bakersfield (California), Murrieta (California), Long Beach (California), Reno (Nevada), Oakland (California), Indio (California), Spokane (Washington), Stockton (California), Oxnard (California), Modesto (California), Anaheim (California), Lancaster (California), Victorville (California), Santa Ana (California), Santa Rosa (California), Santa Clarita (California), Antioch (California), Henderson (Nevada)
Largest populated areas in United States
New York (New York), Los Angeles (California), Chicago (Illinois), Miami (Florida), Dallas (Texas), Philadelphia (Pennsylvania), Houston (Texas), Washington (District of Columbia), Atlanta (Georgia), Boston (Massachusetts), Phoenix (Arizona), Seattle (Washington), San Francisco (California), Detroit (Michigan), San Diego (California), Minneapolis (Minnesota), Tampa (Florida), Denver (Colorado), Brooklyn (New York), Queens (New York), Baltimore (Maryland), Riverside (California), St. Louis (Missouri), Las Vegas (Nevada), Portland (Oregon), San Antonio (Texas), Sacramento (California), San Jose (California), Orlando (Florida), Cleveland (Ohio)
Countries closest to United States
*Calculation of distances from capital to capital
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