U79 Chamberlain USFS night times
Chamberlain Guard Station, ID
Night of Nov 6 to Nov 7MST
Position lights
§ 91.2095:21 PMto7:29 AM
Sunset to sunrise. Lights on.
0021Z to 1429Z
Night logging
§ 1.15:52 PMto6:57 AM
Civil twilight. Log it as night.
0052Z to 1357Z
Night currency
§ 61.57(b)6:21 PMto6:29 AM
One hour after sunset. Landings count.
0121Z to 1329Z
Evenings at U79
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1MST | 5:28 PM | 5:59 PM | 6:28 PM |
| Nov 15MST | 5:11 PM | 5:43 PM | 6:11 PM |
| Dec 1MST | 4:59 PM | 5:33 PM | 5:59 PM |
| Dec 15MST | 4:58 PM | 5:32 PM | 5:58 PM |
| Jan 1MST | 5:08 PM | 5:42 PM | 6:08 PM |
| Jan 15MST | 5:24 PM | 5:57 PM | 6:24 PM |
| Feb 1MST | 5:48 PM | 6:19 PM | 6:48 PM |
| Feb 15MST | 6:08 PM | 6:38 PM | 7:08 PM |
| Mar 1MST | 6:28 PM | 6:57 PM | 7:28 PM |
| Mar 15MDT | 7:47 PM | 8:16 PM | 8:47 PM |
| Apr 1MDT | 8:09 PM | 8:39 PM | 9:09 PM |
| Apr 15MDT | 8:27 PM | 8:58 PM | 9:27 PM |
| May 1MDT | 8:47 PM | 9:20 PM | 9:47 PM |
| May 15MDT | 9:04 PM | 9:39 PM | 10:04 PM |
| Jun 1MDT | 9:22 PM | 9:59 PM | 10:22 PM |
| Jun 15MDT | 9:31 PM | 10:09 PM | 10:31 PM |
| Jul 1MDT | 9:33 PM | 10:10 PM | 10:33 PM |
| Jul 15MDT | 9:26 PM | 10:02 PM | 10:26 PM |
| Aug 1MDT | 9:09 PM | 9:42 PM | 10:09 PM |
| Aug 15MDT | 8:48 PM | 9:20 PM | 9:48 PM |
| Sep 1MDT | 8:18 PM | 8:49 PM | 9:18 PM |
| Sep 15MDT | 7:52 PM | 8:22 PM | 8:52 PM |
| Oct 1MDT | 7:21 PM | 7:51 PM | 8:21 PM |
| Oct 15MDT | 6:56 PM | 7:25 PM | 7:56 PM |
Mornings at U79
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1MST | 6:20 AM | 6:49 AM | 7:20 AM |
| Nov 15MST | 6:40 AM | 7:08 AM | 7:40 AM |
| Dec 1MST | 7:00 AM | 7:27 AM | 8:00 AM |
| Dec 15MST | 7:14 AM | 7:40 AM | 8:14 AM |
| Jan 1MST | 7:20 AM | 7:47 AM | 8:20 AM |
| Jan 15MST | 7:17 AM | 7:44 AM | 8:17 AM |
| Feb 1MST | 7:02 AM | 7:30 AM | 8:02 AM |
| Feb 15MST | 6:42 AM | 7:12 AM | 7:42 AM |
| Mar 1MST | 6:19 AM | 6:49 AM | 7:19 AM |
| Mar 15MDT | 6:53 AM | 7:24 AM | 7:53 AM |
| Apr 1MDT | 6:21 AM | 6:51 AM | 7:21 AM |
| Apr 15MDT | 5:56 AM | 6:25 AM | 6:56 AM |
| May 1MDT | 5:29 AM | 5:57 AM | 6:29 AM |
| May 15MDT | 5:11 AM | 5:36 AM | 6:11 AM |
| Jun 1MDT | 4:56 AM | 5:19 AM | 5:56 AM |
| Jun 15MDT | 4:52 AM | 5:14 AM | 5:52 AM |
| Jul 1MDT | 4:56 AM | 5:19 AM | 5:56 AM |
| Jul 15MDT | 5:07 AM | 5:31 AM | 6:07 AM |
| Aug 1MDT | 5:25 AM | 5:51 AM | 6:25 AM |
| Aug 15MDT | 5:42 AM | 6:09 AM | 6:42 AM |
| Sep 1MDT | 6:02 AM | 6:32 AM | 7:02 AM |
| Sep 15MDT | 6:19 AM | 6:49 AM | 7:19 AM |
| Oct 1MDT | 6:39 AM | 7:09 AM | 7:39 AM |
| Oct 15MDT | 6:57 AM | 7:27 AM | 7:57 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
Runway 07/25
4,100 × 200 ft · Turf
Runway 15/33
2,700 × 140 ft · Turf
Frequencies
Night at U79, in short
When can I log night time at U79?
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 5:52 PM to 6:57 AM MST.
When do landings at U79 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 6:21 PM to 6:29 AM MST.
When are position lights required at U79?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 5:21 PM to 7:29 AM MST.
Nearby airports
- U81 Cold Meadows USFS Cold Meadows Guard Station, ID · 12 nm
- C48 Wilson Bar USFS Dixie, ID · 12 nm
- U60 Big Creek Big Creek, ID · 16 nm
- A05 Dixie USFS Dixie, ID · 16 nm
- I08 Cabin Creek USFS Big Creek Ranger Station, ID · 18 nm
- 3U1 Warren /USFS/ Warren, ID · 22 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.