Sunrise and Sunset times in Koyo, Japan 
Koyo
Aomori
Time zone: Asia/Tokyo, UTC 9 h.
Latitude: 40.5192, Longitude: 141.503
| Date | Sunrise | Solar Noon | Sunset | Length of day |
|---|---|---|---|---|
| 2025-Jul-01, Tuesday | 04:07:09 | 11:37:52 | 19:08:34 | 15h 1m 25s |
| 2025-Jul-02, Wednesday | 04:07:40 | 11:38:03 | 19:08:26 | 15h 0m 46s |
| 2025-Jul-03, Thursday | 04:08:12 | 11:38:14 | 19:08:17 | 15h 0m 5s |
| 2025-Jul-04, Friday | 04:08:45 | 11:38:25 | 19:08:05 | 14h 59m 20s |
| 2025-Jul-05, Saturday | 04:09:20 | 11:38:35 | 19:07:51 | 14h 58m 31s |
| 2025-Jul-06, Sunday | 04:09:56 | 11:38:46 | 19:07:36 | 14h 57m 40s |
| 2025-Jul-07, Monday | 04:10:33 | 11:38:55 | 19:07:18 | 14h 56m 45s |
| 2025-Jul-08, Tuesday | 04:11:11 | 11:39:05 | 19:06:58 | 14h 55m 47s |
| 2025-Jul-09, Wednesday | 04:11:51 | 11:39:14 | 19:06:37 | 14h 54m 46s |
| 2025-Jul-10, Thursday | 04:12:32 | 11:39:23 | 19:06:13 | 14h 53m 41s |
| 2025-Jul-11, Friday | 04:13:14 | 11:39:31 | 19:05:47 | 14h 52m 33s |
| 2025-Jul-12, Saturday | 04:13:57 | 11:39:39 | 19:05:20 | 14h 51m 23s |
| 2025-Jul-13, Sunday | 04:14:42 | 11:39:46 | 19:04:50 | 14h 50m 8s |
| 2025-Jul-14, Monday | 04:15:27 | 11:39:53 | 19:04:18 | 14h 48m 51s |
| 2025-Jul-15, Tuesday | 04:16:13 | 11:39:59 | 19:03:45 | 14h 47m 32s |
| 2025-Jul-16, Wednesday | 04:17:00 | 11:40:05 | 19:03:09 | 14h 46m 9s |
| 2025-Jul-17, Thursday | 04:17:48 | 11:40:10 | 19:02:32 | 14h 44m 44s |
| 2025-Jul-18, Friday | 04:18:37 | 11:40:15 | 19:01:53 | 14h 43m 16s |
| 2025-Jul-19, Saturday | 04:19:26 | 11:40:19 | 19:01:12 | 14h 41m 46s |
| 2025-Jul-20, Sunday | 04:20:17 | 11:40:23 | 19:00:29 | 14h 40m 12s |
| 2025-Jul-21, Monday | 04:21:08 | 11:40:26 | 18:59:44 | 14h 38m 36s |
| 2025-Jul-22, Tuesday | 04:21:59 | 11:40:28 | 18:58:57 | 14h 36m 58s |
| 2025-Jul-23, Wednesday | 04:22:52 | 11:40:30 | 18:58:09 | 14h 35m 17s |
| 2025-Jul-24, Thursday | 04:23:45 | 11:40:32 | 18:57:19 | 14h 33m 34s |
| 2025-Jul-25, Friday | 04:24:38 | 11:40:32 | 18:56:27 | 14h 31m 49s |
| 2025-Jul-26, Saturday | 04:25:32 | 11:40:33 | 18:55:33 | 14h 30m 1s |
| 2025-Jul-27, Sunday | 04:26:27 | 11:40:32 | 18:54:38 | 14h 28m 11s |
| 2025-Jul-28, Monday | 04:27:22 | 11:40:31 | 18:53:41 | 14h 26m 19s |
| 2025-Jul-29, Tuesday | 04:28:17 | 11:40:30 | 18:52:42 | 14h 24m 25s |
| 2025-Jul-30, Wednesday | 04:29:13 | 11:40:27 | 18:51:42 | 14h 22m 29s |
| 2025-Jul-31, Thursday | 04:30:09 | 11:40:24 | 18:50:40 | 14h 20m 31s |
Koyo on Japan map:
Cities in the same time zone Asia/Tokyo
Tokyo (Tōkyō), Osaka (Ōsaka), Yokohama (Kanagawa), Nagoya (Aichi), Fukuoka (Fukuoka), Sapporo (Hokkaidō), Sendai (Miyagi), Hiroshima (Hiroshima), Kyoto (Kyōto), Kobe (Hyōgo), Kawanakajima (Kanagawa), Kitaku (Fukuoka), Hamamatsu (Shizuoka), Naha (Okinawa), Okayama (Okayama), Kumamoto (Kumamoto), Shizuoka (Shizuoka), Utsunomiya (Tochigi), Nagano (Nagano), Hachioji (Tōkyō), Niigata (Niigata), Kagoshima (Kagoshima), Kanazawa (Ishikawa), Otsu (Shiga), Matsuyama (Ehime), Tsu (Mie), Oita (Ōita), Tokushima (Tokushima), Wakayama (Wakayama), Nagasaki (Nagasaki)
Largest Populated Areas in Japan
Tokyo (Tōkyō), Osaka (Ōsaka), Yokohama (Kanagawa), Nagoya (Aichi), Fukuoka (Fukuoka), Sapporo (Hokkaidō), Sendai (Miyagi), Hiroshima (Hiroshima), Kyoto (Kyōto), Kobe (Hyōgo), Kawanakajima (Kanagawa), Kitaku (Fukuoka), Hamamatsu (Shizuoka), Naha (Okinawa), Okayama (Okayama), Kumamoto (Kumamoto), Shizuoka (Shizuoka), Utsunomiya (Tochigi), Nagano (Nagano), Hachioji (Tōkyō), Niigata (Niigata), Kagoshima (Kagoshima), Kanazawa (Ishikawa), Otsu (Shiga), Matsuyama (Ehime), Tsu (Mie), Oita (Ōita), Tokushima (Tokushima), Wakayama (Wakayama), Nagasaki (Nagasaki)
Daylight Hours FAQ: 10 Most Googled Questions Answered
1. What are daylight hours?
Daylight hours refer to the period between sunrise and sunset. This duration changes throughout the year based on season and geographic location.
2. Why are days shorter in winter and longer in summer?
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).
3. When is the longest day of the year?
Northern Hemisphere: June 20-22 (summer solstice).
Southern Hemisphere: December 21-23.
Near polar circles, the sun doesn't set for 24 hours.
4. When is the shortest day of the year?
Northern Hemisphere: December 21-22 (winter solstice).
Southern Hemisphere: June 20-21.
5. How does latitude affect daylight hours?
The closer to poles, the more extreme variations:
- Equator: ~12-hour days year-round
- Polar regions: Midnight sun/polar nights occur
6. Why do New York and Miami have different day lengths?
Miami's lower latitude means:
- Winter days are longer than NY's
- Summer days are slightly shorter
7. When are day and night equal?
During equinoxes:
- Spring: March 20-21
- Fall: September 22-23
How fast do days lengthen/shorten?
Most rapid change near equinoxes: 2-4 minutes daily.
Slowest change near solstices: <1 minute daily.
9. Where can I check daylight hours for my city?
Reliable tools:
- Timeanddate.com
- SunCalc.org
- Photographer's Ephemeris app
10. Does daylight affect health?
Yes. Reduced winter sunlight may cause:
- Seasonal Affective Disorder (SAD)
- Vitamin D deficiency
Solution: Light therapy lamps & midday walks