00U Big Horn County night times
Hardin, MT
Night of Nov 6 to Nov 7MST
Position lights
§ 91.2094:50 PMto6:59 AM
Sunset to sunrise. Lights on.
2350Z to 1359Z
Night logging
§ 1.15:21 PMto6:28 AM
Civil twilight. Log it as night.
0021Z to 1328Z
Night currency
§ 61.57(b)5:50 PMto5:59 AM
One hour after sunset. Landings count.
0050Z to 1259Z
Evenings at 00U
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1MST | 4:57 PM | 5:28 PM | 5:57 PM |
| Nov 15MST | 4:39 PM | 5:12 PM | 5:39 PM |
| Dec 1MST | 4:28 PM | 5:02 PM | 5:28 PM |
| Dec 15MST | 4:27 PM | 5:01 PM | 5:27 PM |
| Jan 1MST | 4:37 PM | 5:11 PM | 5:37 PM |
| Jan 15MST | 4:53 PM | 5:26 PM | 5:53 PM |
| Feb 1MST | 5:17 PM | 5:48 PM | 6:17 PM |
| Feb 15MST | 5:37 PM | 6:08 PM | 6:37 PM |
| Mar 1MST | 5:57 PM | 6:27 PM | 6:57 PM |
| Mar 15MDT | 7:16 PM | 7:46 PM | 8:16 PM |
| Apr 1MDT | 7:39 PM | 8:09 PM | 8:39 PM |
| Apr 15MDT | 7:57 PM | 8:28 PM | 8:57 PM |
| May 1MDT | 8:18 PM | 8:51 PM | 9:18 PM |
| May 15MDT | 8:35 PM | 9:10 PM | 9:35 PM |
| Jun 1MDT | 8:53 PM | 9:30 PM | 9:53 PM |
| Jun 15MDT | 9:02 PM | 9:40 PM | 10:02 PM |
| Jul 1MDT | 9:04 PM | 9:42 PM | 10:04 PM |
| Jul 15MDT | 8:57 PM | 9:34 PM | 9:57 PM |
| Aug 1MDT | 8:39 PM | 9:14 PM | 9:39 PM |
| Aug 15MDT | 8:19 PM | 8:51 PM | 9:19 PM |
| Sep 1MDT | 7:49 PM | 8:19 PM | 8:49 PM |
| Sep 15MDT | 7:22 PM | 7:52 PM | 8:22 PM |
| Oct 1MDT | 6:51 PM | 7:21 PM | 7:51 PM |
| Oct 15MDT | 6:25 PM | 6:55 PM | 7:25 PM |
Mornings at 00U
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1MST | 5:51 AM | 6:20 AM | 6:51 AM |
| Nov 15MST | 6:11 AM | 6:38 AM | 7:11 AM |
| Dec 1MST | 6:31 AM | 6:58 AM | 7:31 AM |
| Dec 15MST | 6:45 AM | 7:11 AM | 7:45 AM |
| Jan 1MST | 6:52 AM | 7:17 AM | 7:52 AM |
| Jan 15MST | 6:48 AM | 7:14 AM | 7:48 AM |
| Feb 1MST | 6:32 AM | 7:01 AM | 7:32 AM |
| Feb 15MST | 6:13 AM | 6:42 AM | 7:13 AM |
| Mar 1MST | 5:49 AM | 6:20 AM | 6:49 AM |
| Mar 15MDT | 6:23 AM | 6:54 AM | 7:23 AM |
| Apr 1MDT | 5:51 AM | 6:21 AM | 6:51 AM |
| Apr 15MDT | 5:25 AM | 5:54 AM | 6:25 AM |
| May 1MDT | 4:58 AM | 5:25 AM | 5:58 AM |
| May 15MDT | 4:39 AM | 5:05 AM | 5:39 AM |
| Jun 1MDT | 4:24 AM | 4:47 AM | 5:24 AM |
| Jun 15MDT | 4:20 AM | 4:42 AM | 5:20 AM |
| Jul 1MDT | 4:25 AM | 4:47 AM | 5:25 AM |
| Jul 15MDT | 4:36 AM | 4:59 AM | 5:36 AM |
| Aug 1MDT | 4:54 AM | 5:19 AM | 5:54 AM |
| Aug 15MDT | 5:11 AM | 5:38 AM | 6:11 AM |
| Sep 1MDT | 5:32 AM | 6:01 AM | 6:32 AM |
| Sep 15MDT | 5:49 AM | 6:19 AM | 6:49 AM |
| Oct 1MDT | 6:09 AM | 6:39 AM | 7:09 AM |
| Oct 15MDT | 6:27 AM | 6:57 AM | 7:27 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
ACTVT CTAF
ACTVT PAPI RWY 8 & 26; MIRL RWY 8/26 - CTAF.
Runway 08/26
4,491 × 75 ft · Asphalt
Frequencies
Night at 00U, in short
When can I log night time at 00U?
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 5:21 PM to 6:28 AM MST.
When do landings at 00U 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 5:50 PM to 5:59 AM MST.
When are position lights required at 00U?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 4:50 PM to 6:59 AM MST.
Nearby airports
- 5U7 Fort Smith Landing Strip Fort Smith, MT · 28 nm
- KBIL Billings Logan International Billings, MT · 37 nm
- 6U7 Hysham Hysham, MT · 38 nm
- M46 Colstrip Colstrip, MT · 40 nm
- 6S8 Laurel Municipal Laurel, MT · 46 nm
- 1S3 Tillitt Field Forsyth, MT · 54 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.