21M Currier's night times
Greenville Junction, ME · Seaplane base
Night of Nov 6 to Nov 7EST
Position lights
§ 91.2094:19 PMto6:26 AM
Sunset to sunrise. Lights on.
2119Z to 1126Z
Night logging
§ 1.14:50 PMto5:55 AM
Civil twilight. Log it as night.
2150Z to 1055Z
Night currency
§ 61.57(b)5:19 PMto5:26 AM
One hour after sunset. Landings count.
2219Z to 1026Z
Evenings at 21M
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1EST | 4:25 PM | 4:56 PM | 5:25 PM |
| Nov 15EST | 4:08 PM | 4:40 PM | 5:08 PM |
| Dec 1EST | 3:57 PM | 4:30 PM | 4:57 PM |
| Dec 15EST | 3:56 PM | 4:30 PM | 4:56 PM |
| Jan 1EST | 4:06 PM | 4:40 PM | 5:06 PM |
| Jan 15EST | 4:21 PM | 4:54 PM | 5:21 PM |
| Feb 1EST | 4:45 PM | 5:17 PM | 5:45 PM |
| Feb 15EST | 5:05 PM | 5:36 PM | 6:05 PM |
| Mar 1EST | 5:25 PM | 5:55 PM | 6:25 PM |
| Mar 15EDT | 6:44 PM | 7:14 PM | 7:44 PM |
| Apr 1EDT | 7:06 PM | 7:36 PM | 8:06 PM |
| Apr 15EDT | 7:24 PM | 7:56 PM | 8:24 PM |
| May 1EDT | 7:45 PM | 8:18 PM | 8:45 PM |
| May 15EDT | 8:02 PM | 8:37 PM | 9:02 PM |
| Jun 1EDT | 8:20 PM | 8:57 PM | 9:20 PM |
| Jun 15EDT | 8:29 PM | 9:07 PM | 9:29 PM |
| Jul 1EDT | 8:31 PM | 9:08 PM | 9:31 PM |
| Jul 15EDT | 8:24 PM | 9:00 PM | 9:24 PM |
| Aug 1EDT | 8:07 PM | 8:41 PM | 9:07 PM |
| Aug 15EDT | 7:46 PM | 8:18 PM | 8:46 PM |
| Sep 1EDT | 7:16 PM | 7:47 PM | 8:16 PM |
| Sep 15EDT | 6:50 PM | 7:20 PM | 7:50 PM |
| Oct 1EDT | 6:19 PM | 6:49 PM | 7:19 PM |
| Oct 15EDT | 5:53 PM | 6:23 PM | 6:53 PM |
Mornings at 21M
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1EST | 5:18 AM | 5:47 AM | 6:18 AM |
| Nov 15EST | 5:38 AM | 6:05 AM | 6:38 AM |
| Dec 1EST | 5:58 AM | 6:25 AM | 6:58 AM |
| Dec 15EST | 6:12 AM | 6:37 AM | 7:12 AM |
| Jan 1EST | 6:19 AM | 6:45 AM | 7:19 AM |
| Jan 15EST | 6:15 AM | 6:42 AM | 7:15 AM |
| Feb 1EST | 6:00 AM | 6:28 AM | 7:00 AM |
| Feb 15EST | 5:40 AM | 6:10 AM | 6:40 AM |
| Mar 1EST | 5:17 AM | 5:47 AM | 6:17 AM |
| Mar 15EDT | 5:51 AM | 6:22 AM | 6:51 AM |
| Apr 1EDT | 5:19 AM | 5:49 AM | 6:19 AM |
| Apr 15EDT | 4:53 AM | 5:23 AM | 5:53 AM |
| May 1EDT | 4:27 AM | 4:54 AM | 5:27 AM |
| May 15EDT | 4:08 AM | 4:34 AM | 5:08 AM |
| Jun 1EDT | 3:53 AM | 4:17 AM | 4:53 AM |
| Jun 15EDT | 3:49 AM | 4:11 AM | 4:49 AM |
| Jul 1EDT | 3:54 AM | 4:16 AM | 4:54 AM |
| Jul 15EDT | 4:04 AM | 4:28 AM | 5:04 AM |
| Aug 1EDT | 4:22 AM | 4:48 AM | 5:22 AM |
| Aug 15EDT | 4:39 AM | 5:07 AM | 5:39 AM |
| Sep 1EDT | 5:00 AM | 5:29 AM | 6:00 AM |
| Sep 15EDT | 5:17 AM | 5:47 AM | 6:17 AM |
| Oct 1EDT | 5:36 AM | 6:07 AM | 6:36 AM |
| Oct 15EDT | 5:55 AM | 6:25 AM | 6:55 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
Runway 18W/36W
10,000 × 3000 ft · Water
Frequencies
Night at 21M, in short
When can I log night time at 21M?
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 4:50 PM to 5:55 AM EST.
When do landings at 21M 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 5:19 PM to 5:26 AM EST.
When are position lights required at 21M?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 4:19 PM to 6:26 AM EST.
Nearby airports
- 52B Moosehead Aero Marine Greenville, ME · 1 nm
- 3B1 Greenville Municipal Greenville, ME · 3 nm
- 44B Charles A Chase Jr Memorial Field Dover/Foxcroft, ME · 24 nm
- 59B Newton Field Jackman, ME · 28 nm
- 60B Moose River Jackman, ME · 29 nm
- 78B Buckhorn Camps Norcross/Millinocket/, ME · 30 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.