Sunrise and Sunset times in Porsgrunn, Norway 
Porsgrunn
Telemark
Time zone: Europe/Oslo, UTC 2 h.
Latitude: 59.15, Longitude: 9.6667
| Date | Sunrise | Solar Noon | Sunset | Length of day |
|---|---|---|---|---|
| 2025-Jun-01, Sunday | 04:17:45 | 13:19:13 | 22:20:42 | 18h 2m 57s |
| 2025-Jun-02, Monday | 04:16:27 | 13:19:23 | 22:22:19 | 18h 5m 52s |
| 2025-Jun-03, Tuesday | 04:15:14 | 13:19:33 | 22:23:52 | 18h 8m 38s |
| 2025-Jun-04, Wednesday | 04:14:05 | 13:19:43 | 22:25:22 | 18h 11m 17s |
| 2025-Jun-05, Thursday | 04:13:00 | 13:19:54 | 22:26:48 | 18h 13m 48s |
| 2025-Jun-06, Friday | 04:11:59 | 13:20:05 | 22:28:10 | 18h 16m 11s |
| 2025-Jun-07, Saturday | 04:11:03 | 13:20:16 | 22:29:29 | 18h 18m 26s |
| 2025-Jun-08, Sunday | 04:10:11 | 13:20:27 | 22:30:43 | 18h 20m 32s |
| 2025-Jun-09, Monday | 04:09:24 | 13:20:39 | 22:31:54 | 18h 22m 30s |
| 2025-Jun-10, Tuesday | 04:08:42 | 13:20:51 | 22:33:00 | 18h 24m 18s |
| 2025-Jun-11, Wednesday | 04:08:04 | 13:21:03 | 22:34:02 | 18h 25m 58s |
| 2025-Jun-12, Thursday | 04:07:32 | 13:21:16 | 22:34:59 | 18h 27m 27s |
| 2025-Jun-13, Friday | 04:07:04 | 13:21:28 | 22:35:52 | 18h 28m 48s |
| 2025-Jun-14, Saturday | 04:06:41 | 13:21:41 | 22:36:41 | 18h 30m 0s |
| 2025-Jun-15, Sunday | 04:06:23 | 13:21:54 | 22:37:24 | 18h 31m 1s |
| 2025-Jun-16, Monday | 04:06:10 | 13:22:07 | 22:38:03 | 18h 31m 53s |
| 2025-Jun-17, Tuesday | 04:06:03 | 13:22:20 | 22:38:37 | 18h 32m 34s |
| 2025-Jun-18, Wednesday | 04:06:00 | 13:22:33 | 22:39:06 | 18h 33m 6s |
| 2025-Jun-19, Thursday | 04:06:02 | 13:22:46 | 22:39:29 | 18h 33m 27s |
| 2025-Jun-20, Friday | 04:06:09 | 13:22:59 | 22:39:48 | 18h 33m 39s |
| 2025-Jun-21, Saturday | 04:06:22 | 13:23:12 | 22:40:02 | 18h 33m 40s |
| 2025-Jun-22, Sunday | 04:06:39 | 13:23:25 | 22:40:10 | 18h 33m 31s |
| 2025-Jun-23, Monday | 04:07:02 | 13:23:38 | 22:40:14 | 18h 33m 12s |
| 2025-Jun-24, Tuesday | 04:07:29 | 13:23:51 | 22:40:12 | 18h 32m 43s |
| 2025-Jun-25, Wednesday | 04:08:01 | 13:24:04 | 22:40:06 | 18h 32m 5s |
| 2025-Jun-26, Thursday | 04:08:39 | 13:24:16 | 22:39:54 | 18h 31m 15s |
| 2025-Jun-27, Friday | 04:09:20 | 13:24:29 | 22:39:37 | 18h 30m 17s |
| 2025-Jun-28, Saturday | 04:10:07 | 13:24:41 | 22:39:15 | 18h 29m 8s |
| 2025-Jun-29, Sunday | 04:10:58 | 13:24:53 | 22:38:48 | 18h 27m 50s |
| 2025-Jun-30, Monday | 04:11:54 | 13:25:05 | 22:38:16 | 18h 26m 22s |
Porsgrunn on Norway map:
Cities in the same time zone Europe/Oslo
Oslo (Oslo), Bergen (Hordaland), Stavanger (Rogaland), Trondheim , Sorum (Akershus), Drammen (Buskerud), Skien (Telemark), Kristiansand (Vest-Agder), Tromso (Troms), Alesund (Møre og Romsdal), Sandnes (Rogaland), Haugesund (Rogaland), Tonsberg (Vestfold), Moss (Østfold), Bodo (Nordland), Arendal (Aust-Agder), Hamar (Hedmark), Gjovik (Oppland), Mo i Rana (Nordland), Narvik (Nordland), Lillehammer (Oppland), Harstad (Troms), Molde (Møre og Romsdal), Alta (Finnmark), Steinkjer , Hammerfest (Finnmark), Namsos , Vadso (Finnmark), Svolvaer (Nordland), Finnsnes (Troms)
Largest Populated Areas in Norway
Oslo (Oslo), Bergen (Hordaland), Stavanger (Rogaland), Trondheim , Sorum (Akershus), Drammen (Buskerud), Skien (Telemark), Kristiansand (Vest-Agder), Tromso (Troms), Alesund (Møre og Romsdal), Sandnes (Rogaland), Haugesund (Rogaland), Tonsberg (Vestfold), Moss (Østfold), Bodo (Nordland), Arendal (Aust-Agder), Hamar (Hedmark), Gjovik (Oppland), Mo i Rana (Nordland), Narvik (Nordland), Lillehammer (Oppland), Harstad (Troms), Molde (Møre og Romsdal), Alta (Finnmark), Steinkjer , Hammerfest (Finnmark), Namsos , Vadso (Finnmark), Svolvaer (Nordland), Finnsnes (Troms)
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