80S Lavina night times
Lavina, MT
Night of Nov 6 to Nov 7MST
Position lights
§ 91.2094:54 PMto7:06 AM
Sunset to sunrise. Lights on.
2354Z to 1406Z
Night logging
§ 1.15:26 PMto6:34 AM
Civil twilight. Log it as night.
0026Z to 1334Z
Night currency
§ 61.57(b)5:54 PMto6:06 AM
One hour after sunset. Landings count.
0054Z to 1306Z
Evenings at 80S
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1MST | 5:01 PM | 5:32 PM | 6:01 PM |
| Nov 15MST | 4:43 PM | 5:16 PM | 5:43 PM |
| Dec 1MST | 4:31 PM | 5:05 PM | 5:31 PM |
| Dec 15MST | 4:30 PM | 5:05 PM | 5:30 PM |
| Jan 1MST | 4:40 PM | 5:15 PM | 5:40 PM |
| Jan 15MST | 4:56 PM | 5:30 PM | 5:56 PM |
| Feb 1MST | 5:20 PM | 5:52 PM | 6:20 PM |
| Feb 15MST | 5:41 PM | 6:12 PM | 6:41 PM |
| Mar 1MST | 6:02 PM | 6:32 PM | 7:02 PM |
| Mar 15MDT | 7:22 PM | 7:51 PM | 8:22 PM |
| Apr 1MDT | 7:45 PM | 8:15 PM | 8:45 PM |
| Apr 15MDT | 8:03 PM | 8:35 PM | 9:03 PM |
| May 1MDT | 8:25 PM | 8:58 PM | 9:25 PM |
| May 15MDT | 8:42 PM | 9:18 PM | 9:42 PM |
| Jun 1MDT | 9:00 PM | 9:38 PM | 10:00 PM |
| Jun 15MDT | 9:10 PM | 9:49 PM | 10:10 PM |
| Jul 1MDT | 9:12 PM | 9:50 PM | 10:12 PM |
| Jul 15MDT | 9:04 PM | 9:42 PM | 10:04 PM |
| Aug 1MDT | 8:46 PM | 9:21 PM | 9:46 PM |
| Aug 15MDT | 8:25 PM | 8:58 PM | 9:25 PM |
| Sep 1MDT | 7:55 PM | 8:26 PM | 8:55 PM |
| Sep 15MDT | 7:27 PM | 7:58 PM | 8:27 PM |
| Oct 1MDT | 6:56 PM | 7:26 PM | 7:56 PM |
| Oct 15MDT | 6:29 PM | 7:00 PM | 7:29 PM |
Mornings at 80S
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1MST | 5:57 AM | 6:26 AM | 6:57 AM |
| Nov 15MST | 6:17 AM | 6:45 AM | 7:17 AM |
| Dec 1MST | 6:39 AM | 7:04 AM | 7:39 AM |
| Dec 15MST | 6:52 AM | 7:17 AM | 7:52 AM |
| Jan 1MST | 6:59 AM | 7:24 AM | 7:59 AM |
| Jan 15MST | 6:55 AM | 7:21 AM | 7:55 AM |
| Feb 1MST | 6:39 AM | 7:07 AM | 7:39 AM |
| Feb 15MST | 6:19 AM | 6:48 AM | 7:19 AM |
| Mar 1MST | 5:55 AM | 6:25 AM | 6:55 AM |
| Mar 15MDT | 6:29 AM | 6:59 AM | 7:29 AM |
| Apr 1MDT | 5:56 AM | 6:25 AM | 6:56 AM |
| Apr 15MDT | 5:29 AM | 5:58 AM | 6:29 AM |
| May 1MDT | 5:02 AM | 5:29 AM | 6:02 AM |
| May 15MDT | 4:43 AM | 5:07 AM | 5:43 AM |
| Jun 1MDT | 4:27 AM | 4:50 AM | 5:27 AM |
| Jun 15MDT | 4:23 AM | 4:44 AM | 5:23 AM |
| Jul 1MDT | 4:28 AM | 4:49 AM | 5:28 AM |
| Jul 15MDT | 4:39 AM | 5:01 AM | 5:39 AM |
| Aug 1MDT | 4:57 AM | 5:22 AM | 5:57 AM |
| Aug 15MDT | 5:15 AM | 5:42 AM | 6:15 AM |
| Sep 1MDT | 5:36 AM | 6:05 AM | 6:36 AM |
| Sep 15MDT | 5:54 AM | 6:24 AM | 6:54 AM |
| Oct 1MDT | 6:14 AM | 6:44 AM | 7:14 AM |
| Oct 15MDT | 6:33 AM | 7:03 AM | 7:33 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
Runway 07/25
3,460 × 100 ft · Turf
Frequencies
Night at 80S, in short
When can I log night time at 80S?
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 5:26 PM to 6:34 AM MST.
When do landings at 80S 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 5:54 PM to 6:06 AM MST.
When are position lights required at 80S?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 4:54 PM to 7:06 AM MST.
Nearby airports
- 8U0 Ryegate Ryegate, MT · 12 nm
- KRPX Roundup Roundup, MT · 20 nm
- KBIL Billings Logan International Billings, MT · 35 nm
- 6S8 Laurel Municipal Laurel, MT · 37 nm
- KHWQ Wheatland County At Harlowton Harlowton, MT · 38 nm
- 6S3 Woltermann Memorial Columbus, MT · 42 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.