M21 Muhlenberg County night times
Greenville, KY
Night of Nov 6 to Nov 7CST
Position lights
§ 91.2094:46 PMto6:19 AM
Sunset to sunrise. Lights on.
2246Z to 1219Z
Night logging
§ 1.15:13 PMto5:52 AM
Civil twilight. Log it as night.
2313Z to 1152Z
Night currency
§ 61.57(b)5:46 PMto5:19 AM
One hour after sunset. Landings count.
2346Z to 1119Z
Evenings at M21
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1CST | 4:51 PM | 5:18 PM | 5:51 PM |
| Nov 15CST | 4:38 PM | 5:06 PM | 5:38 PM |
| Dec 1CST | 4:31 PM | 5:00 PM | 5:31 PM |
| Dec 15CST | 4:32 PM | 5:01 PM | 5:32 PM |
| Jan 1CST | 4:42 PM | 5:11 PM | 5:42 PM |
| Jan 15CST | 4:55 PM | 5:23 PM | 5:55 PM |
| Feb 1CST | 5:13 PM | 5:41 PM | 6:13 PM |
| Feb 15CST | 5:28 PM | 5:55 PM | 6:28 PM |
| Mar 1CST | 5:43 PM | 6:09 PM | 6:43 PM |
| Mar 15CDT | 6:56 PM | 7:22 PM | 7:56 PM |
| Apr 1CDT | 7:11 PM | 7:37 PM | 8:11 PM |
| Apr 15CDT | 7:24 PM | 7:51 PM | 8:24 PM |
| May 1CDT | 7:38 PM | 8:06 PM | 8:38 PM |
| May 15CDT | 7:50 PM | 8:19 PM | 8:50 PM |
| Jun 1CDT | 8:03 PM | 8:34 PM | 9:03 PM |
| Jun 15CDT | 8:11 PM | 8:42 PM | 9:11 PM |
| Jul 1CDT | 8:13 PM | 8:44 PM | 9:13 PM |
| Jul 15CDT | 8:09 PM | 8:39 PM | 9:09 PM |
| Aug 1CDT | 7:56 PM | 8:25 PM | 8:56 PM |
| Aug 15CDT | 7:41 PM | 8:08 PM | 8:41 PM |
| Sep 1CDT | 7:18 PM | 7:44 PM | 8:18 PM |
| Sep 15CDT | 6:56 PM | 7:23 PM | 7:56 PM |
| Oct 1CDT | 6:32 PM | 6:58 PM | 7:32 PM |
| Oct 15CDT | 6:12 PM | 6:38 PM | 7:12 PM |
Mornings at M21
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1CST | 5:13 AM | 5:46 AM | 6:13 AM |
| Nov 15CST | 5:28 AM | 6:00 AM | 6:28 AM |
| Dec 1CST | 5:44 AM | 6:15 AM | 6:44 AM |
| Dec 15CST | 5:55 AM | 6:26 AM | 6:55 AM |
| Jan 1CST | 6:03 AM | 6:34 AM | 7:03 AM |
| Jan 15CST | 6:02 AM | 6:33 AM | 7:02 AM |
| Feb 1CST | 5:52 AM | 6:24 AM | 6:52 AM |
| Feb 15CST | 5:38 AM | 6:11 AM | 6:38 AM |
| Mar 1CST | 5:20 AM | 5:54 AM | 6:20 AM |
| Mar 15CDT | 6:00 AM | 6:34 AM | 7:00 AM |
| Apr 1CDT | 5:34 AM | 6:08 AM | 6:34 AM |
| Apr 15CDT | 5:14 AM | 5:48 AM | 6:14 AM |
| May 1CDT | 4:54 AM | 5:26 AM | 5:54 AM |
| May 15CDT | 4:40 AM | 5:11 AM | 5:40 AM |
| Jun 1CDT | 4:30 AM | 5:00 AM | 5:30 AM |
| Jun 15CDT | 4:28 AM | 4:57 AM | 5:28 AM |
| Jul 1CDT | 4:32 AM | 5:01 AM | 5:32 AM |
| Jul 15CDT | 4:40 AM | 5:10 AM | 5:40 AM |
| Aug 1CDT | 4:53 AM | 5:24 AM | 5:53 AM |
| Aug 15CDT | 5:05 AM | 5:37 AM | 6:05 AM |
| Sep 1CDT | 5:19 AM | 5:52 AM | 6:19 AM |
| Sep 15CDT | 5:31 AM | 6:04 AM | 6:31 AM |
| Oct 1CDT | 5:44 AM | 6:18 AM | 6:44 AM |
| Oct 15CDT | 5:56 AM | 6:30 AM | 6:56 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
ACTVT REIL RWY 06 & 24; PAPI RWY 06 & 24; MIRL RWY 06/24 - CTAF.
Runway 06/24
4,999 × 75 ft · Asphalt
Frequencies
Night at M21, in short
When can I log night time at M21?
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 5:13 PM to 5:52 AM CST.
When do landings at M21 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 5:46 PM to 5:19 AM CST.
When are position lights required at M21?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 4:46 PM to 6:19 AM CST.
Nearby airports
- 2I0 Madisonville Regional Madisonville, KY · 14 nm
- KJQD Ohio County Hartford, KY · 20 nm
- 8M7 Tradewater Dawson Springs, KY · 25 nm
- KHVC Hopkinsville-Christian County Hopkinsville, KY · 26 nm
- 4M7 Russellville-Logan County Russellville, KY · 31 nm
- KOWB Owensboro/Daviess County Regional Owensboro, KY · 31 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.