21N Mattituck night times
Mattituck, NY
Night of Nov 6 to Nov 7EST
Position lights
§ 91.2094:40 PMto6:28 AM
Sunset to sunrise. Lights on.
2140Z to 1128Z
Night logging
§ 1.15:09 PMto5:59 AM
Civil twilight. Log it as night.
2209Z to 1059Z
Night currency
§ 61.57(b)5:40 PMto5:28 AM
One hour after sunset. Landings count.
2240Z to 1028Z
Evenings at 21N
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1EST | 4:46 PM | 5:14 PM | 5:46 PM |
| Nov 15EST | 4:31 PM | 5:01 PM | 5:31 PM |
| Dec 1EST | 4:23 PM | 4:53 PM | 5:23 PM |
| Dec 15EST | 4:23 PM | 4:54 PM | 5:23 PM |
| Jan 1EST | 4:32 PM | 5:03 PM | 5:32 PM |
| Jan 15EST | 4:46 PM | 5:17 PM | 5:46 PM |
| Feb 1EST | 5:07 PM | 5:36 PM | 6:07 PM |
| Feb 15EST | 5:24 PM | 5:52 PM | 6:24 PM |
| Mar 1EST | 5:41 PM | 6:09 PM | 6:41 PM |
| Mar 15EDT | 6:57 PM | 7:24 PM | 7:57 PM |
| Apr 1EDT | 7:15 PM | 7:43 PM | 8:15 PM |
| Apr 15EDT | 7:30 PM | 7:58 PM | 8:30 PM |
| May 1EDT | 7:47 PM | 8:17 PM | 8:47 PM |
| May 15EDT | 8:01 PM | 8:32 PM | 9:01 PM |
| Jun 1EDT | 8:16 PM | 8:49 PM | 9:16 PM |
| Jun 15EDT | 8:24 PM | 8:57 PM | 9:24 PM |
| Jul 1EDT | 8:26 PM | 8:59 PM | 9:26 PM |
| Jul 15EDT | 8:21 PM | 8:53 PM | 9:21 PM |
| Aug 1EDT | 8:06 PM | 8:37 PM | 9:06 PM |
| Aug 15EDT | 7:49 PM | 8:18 PM | 8:49 PM |
| Sep 1EDT | 7:23 PM | 7:51 PM | 8:23 PM |
| Sep 15EDT | 6:59 PM | 7:27 PM | 7:59 PM |
| Oct 1EDT | 6:32 PM | 7:00 PM | 7:32 PM |
| Oct 15EDT | 6:10 PM | 6:37 PM | 7:10 PM |
Mornings at 21N
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1EST | 5:21 AM | 5:52 AM | 6:21 AM |
| Nov 15EST | 5:38 AM | 6:08 AM | 6:38 AM |
| Dec 1EST | 5:56 AM | 6:25 AM | 6:56 AM |
| Dec 15EST | 6:08 AM | 6:37 AM | 7:08 AM |
| Jan 1EST | 6:15 AM | 6:44 AM | 7:15 AM |
| Jan 15EST | 6:13 AM | 6:43 AM | 7:13 AM |
| Feb 1EST | 6:01 AM | 6:32 AM | 7:01 AM |
| Feb 15EST | 5:45 AM | 6:16 AM | 6:45 AM |
| Mar 1EST | 5:25 AM | 5:57 AM | 6:25 AM |
| Mar 15EDT | 6:02 AM | 6:35 AM | 7:02 AM |
| Apr 1EDT | 5:34 AM | 6:06 AM | 6:34 AM |
| Apr 15EDT | 5:11 AM | 5:43 AM | 6:11 AM |
| May 1EDT | 4:48 AM | 5:19 AM | 5:48 AM |
| May 15EDT | 4:33 AM | 5:01 AM | 5:33 AM |
| Jun 1EDT | 4:20 AM | 4:48 AM | 5:20 AM |
| Jun 15EDT | 4:17 AM | 4:44 AM | 5:17 AM |
| Jul 1EDT | 4:22 AM | 4:48 AM | 5:22 AM |
| Jul 15EDT | 4:31 AM | 4:58 AM | 5:31 AM |
| Aug 1EDT | 4:46 AM | 5:15 AM | 5:46 AM |
| Aug 15EDT | 5:00 AM | 5:30 AM | 6:00 AM |
| Sep 1EDT | 5:17 AM | 5:48 AM | 6:17 AM |
| Sep 15EDT | 5:30 AM | 6:03 AM | 6:30 AM |
| Oct 1EDT | 5:47 AM | 6:19 AM | 6:47 AM |
| Oct 15EDT | 6:01 AM | 6:34 AM | 7:01 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
ALL TRNG OPNS; TKOF/LNDG PRACTICE AND NIGHT OPNS ARE PROHIBITED.
Runway 01/19
2,200 × 60 ft · Asphalt
Frequencies
Night at 21N, in short
When can I log night time at 21N?
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 5:09 PM to 5:59 AM EST.
When do landings at 21N 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 5:40 PM to 5:28 AM EST.
When are position lights required at 21N?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 4:40 PM to 6:28 AM EST.
Nearby airports
- 87N Southampton Southampton, NY · 9 nm
- KFOK Francis S Gabreski Westhampton Beach, NY · 10 nm
- KJPX East Hampton Town East Hampton, NY · 12 nm
- KHWV Brookhaven Shirley, NY · 19 nm
- KHVN Tweed/New Haven New Haven, CT · 24 nm
- KSNC Chester Chester, CT · 24 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.