PFKU Koyukuk night times
Koyukuk, AK · FAA KYU
Night of Nov 6 to Nov 7AKST
Position lights
§ 91.2094:51 PMto9:40 AM
Sunset to sunrise. Lights on.
0151Z to 1840Z
Night logging
§ 1.15:49 PMto8:42 AM
Civil twilight. Log it as night.
0249Z to 1742Z
Night currency
§ 61.57(b)5:51 PMto8:40 AM
One hour after sunset. Landings count.
0251Z to 1740Z
Evenings at PFKU
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1AKST | 5:08 PM | 6:03 PM | 6:08 PM |
| Nov 15AKST | 4:22 PM | 5:25 PM | 5:22 PM |
| Dec 1AKST | 3:39 PM | 4:55 PM | 4:39 PM |
| Dec 15AKST | 3:19 PM | 4:44 PM | 4:19 PM |
| Jan 1AKST | 3:35 PM | 4:57 PM | 4:35 PM |
| Jan 15AKST | 4:15 PM | 5:26 PM | 5:15 PM |
| Feb 1AKST | 5:13 PM | 6:13 PM | 6:13 PM |
| Feb 15AKST | 6:02 PM | 6:55 PM | 7:02 PM |
| Mar 1AKST | 6:48 PM | 7:37 PM | 7:48 PM |
| Mar 15AKDT | 8:32 PM | 9:21 PM | 9:32 PM |
| Apr 1AKDT | 9:24 PM | 10:16 PM | 10:24 PM |
| Apr 15AKDT | 10:08 PM | 11:07 PM | 11:08 PM |
| May 1AKDT | 11:01 PM | 12:17 AM | 12:01 AM |
| May 15AKDT | 11:50 PM | 2:16 AM | 12:50 AM |
| Jun 1AKDT | 12:49 AM | No night | 1:49 AM |
| Jun 15AKDT | 1:25 AM | No night | 2:25 AM |
| Jul 1AKDT | 1:18 AM | No night | 2:18 AM |
| Jul 15AKDT | 12:39 AM | No night | 1:39 AM |
| Aug 1AKDT | 11:41 PM | 1:19 AM | 12:41 AM |
| Aug 15AKDT | 10:51 PM | 11:59 PM | 11:51 PM |
| Sep 1AKDT | 9:49 PM | 10:43 PM | 10:49 PM |
| Sep 15AKDT | 8:57 PM | 9:47 PM | 9:57 PM |
| Oct 1AKDT | 7:59 PM | 8:47 PM | 8:59 PM |
| Oct 15AKDT | 7:08 PM | 7:58 PM | 8:08 PM |
Mornings at PFKU
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1AKST | 8:20 AM | 8:25 AM | 9:20 AM |
| Nov 15AKST | 9:08 AM | 9:05 AM | 10:08 AM |
| Dec 1AKST | 10:00 AM | 9:45 AM | 11:00 AM |
| Dec 15AKST | 10:33 AM | 10:08 AM | 11:33 AM |
| Jan 1AKST | 10:35 AM | 10:13 AM | 11:35 AM |
| Jan 15AKST | 10:07 AM | 9:56 AM | 11:07 AM |
| Feb 1AKST | 9:17 AM | 9:18 AM | 10:17 AM |
| Feb 15AKST | 8:30 AM | 8:37 AM | 9:30 AM |
| Mar 1AKST | 7:40 AM | 7:51 AM | 8:40 AM |
| Mar 15AKDT | 7:49 AM | 8:01 AM | 8:49 AM |
| Apr 1AKDT | 6:47 AM | 6:56 AM | 7:47 AM |
| Apr 15AKDT | 5:56 AM | 5:58 AM | 6:56 AM |
| May 1AKDT | 4:57 AM | 4:43 AM | 5:57 AM |
| May 15AKDT | 4:07 AM | 3:01 AM | 5:07 AM |
| Jun 1AKDT | 3:12 AM | No night | 4:12 AM |
| Jun 15AKDT | 2:40 AM | No night | 3:40 AM |
| Jul 1AKDT | 2:50 AM | No night | 3:50 AM |
| Jul 15AKDT | 3:32 AM | No night | 4:32 AM |
| Aug 1AKDT | 4:30 AM | 3:49 AM | 5:30 AM |
| Aug 15AKDT | 5:17 AM | 5:08 AM | 6:17 AM |
| Sep 1AKDT | 6:11 AM | 6:16 AM | 7:11 AM |
| Sep 15AKDT | 6:53 AM | 7:03 AM | 7:53 AM |
| Oct 1AKDT | 7:41 AM | 7:52 AM | 8:41 AM |
| Oct 15AKDT | 8:24 AM | 8:34 AM | 9:24 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
ACTVT ROTG BCN - CTAF.
ACTVT PAPI RWY 07; REIL RWY 07; MIRL RWY 07/25 - CTAF.
Runway 07/25
4,000 × 75 ft · GRAVEL
Frequencies
Night at PFKU, in short
When can I log night time at PFKU?
From the end of evening civil twilight to the beginning of morning civil twilight, when the sun is 6° below the horizon (14 CFR 1.1). On the night of Nov 6, 2026, that was 5:49 PM to 8:42 AM AKST.
When do landings at PFKU count for night currency?
From one hour after sunset to one hour before sunrise. To carry passengers at night you need 3 takeoffs and 3 full-stop landings in that period within the last 90 days (14 CFR 61.57(b)). On the night of Nov 6, 2026, that was 5:51 PM to 8:40 AM AKST.
When are position lights required at PFKU?
From sunset to sunrise (14 CFR 91.209(a)), with a different rule in Alaska. On the night of Nov 6, 2026, that was 4:51 PM to 9:40 AM AKST.
Nearby airports
- PANU Nulato Nulato, AK · 12 nm
- PAGA Edward G Pitka Sr Galena, AK · 22 nm
- PAKV Kaltag Kaltag, AK · 42 nm
- PARY Ruby Ruby, AK · 58 nm
- PAHL Huslia Huslia, AK · 60 nm
- PAKK Koyuk Alfred Adams Koyuk, AK · 87 nm
Times are worked out from the sun's position for a sea-level horizon, rounded to the minute. Airport data from the FAA NASR cycle of Oct 29, 2026.