57B Islesboro night times
Islesboro, ME
Night of Nov 6 to Nov 7EST
Position lights
§ 91.2094:19 PMto6:21 AM
Sunset to sunrise. Lights on.
2119Z to 1121Z
Night logging
§ 1.14:49 PMto5:50 AM
Civil twilight. Log it as night.
2149Z to 1050Z
Night currency
§ 61.57(b)5:19 PMto5:21 AM
One hour after sunset. Landings count.
2219Z to 1021Z
Evenings at 57B
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 | 4:55 PM | 5:25 PM |
| Nov 15EST | 4:09 PM | 4:40 PM | 5:09 PM |
| Dec 1EST | 3:58 PM | 4:30 PM | 4:58 PM |
| Dec 15EST | 3:57 PM | 4:30 PM | 4:57 PM |
| Jan 1EST | 4:07 PM | 4:40 PM | 5:07 PM |
| Jan 15EST | 4:22 PM | 4:55 PM | 5:22 PM |
| Feb 1EST | 4:45 PM | 5:16 PM | 5:45 PM |
| Feb 15EST | 5:05 PM | 5:34 PM | 6:05 PM |
| Mar 1EST | 5:24 PM | 5:53 PM | 6:24 PM |
| Mar 15EDT | 6:42 PM | 7:10 PM | 7:42 PM |
| Apr 1EDT | 7:03 PM | 7:32 PM | 8:03 PM |
| Apr 15EDT | 7:20 PM | 7:50 PM | 8:20 PM |
| May 1EDT | 7:39 PM | 8:11 PM | 8:39 PM |
| May 15EDT | 7:56 PM | 8:30 PM | 8:56 PM |
| Jun 1EDT | 8:13 PM | 8:48 PM | 9:13 PM |
| Jun 15EDT | 8:21 PM | 8:58 PM | 9:21 PM |
| Jul 1EDT | 8:23 PM | 9:00 PM | 9:23 PM |
| Jul 15EDT | 8:17 PM | 8:52 PM | 9:17 PM |
| Aug 1EDT | 8:01 PM | 8:34 PM | 9:01 PM |
| Aug 15EDT | 7:41 PM | 8:12 PM | 8:41 PM |
| Sep 1EDT | 7:12 PM | 7:42 PM | 8:12 PM |
| Sep 15EDT | 6:46 PM | 7:16 PM | 7:46 PM |
| Oct 1EDT | 6:17 PM | 6:46 PM | 7:17 PM |
| Oct 15EDT | 5:52 PM | 6:21 PM | 6:52 PM |
Mornings at 57B
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1EST | 5:13 AM | 5:43 AM | 6:13 AM |
| Nov 15EST | 5:32 AM | 6:00 AM | 6:32 AM |
| Dec 1EST | 5:51 AM | 6:19 AM | 6:51 AM |
| Dec 15EST | 6:05 AM | 6:31 AM | 7:05 AM |
| Jan 1EST | 6:11 AM | 6:38 AM | 7:11 AM |
| Jan 15EST | 6:08 AM | 6:36 AM | 7:08 AM |
| Feb 1EST | 5:54 AM | 6:23 AM | 6:54 AM |
| Feb 15EST | 5:36 AM | 6:06 AM | 6:36 AM |
| Mar 1EST | 5:13 AM | 5:44 AM | 6:13 AM |
| Mar 15EDT | 5:48 AM | 6:19 AM | 6:48 AM |
| Apr 1EDT | 5:17 AM | 5:48 AM | 6:17 AM |
| Apr 15EDT | 4:52 AM | 5:22 AM | 5:52 AM |
| May 1EDT | 4:27 AM | 4:55 AM | 5:27 AM |
| May 15EDT | 4:09 AM | 4:35 AM | 5:09 AM |
| Jun 1EDT | 3:55 AM | 4:19 AM | 4:55 AM |
| Jun 15EDT | 3:51 AM | 4:14 AM | 4:51 AM |
| Jul 1EDT | 3:55 AM | 4:19 AM | 4:55 AM |
| Jul 15EDT | 4:06 AM | 4:30 AM | 5:06 AM |
| Aug 1EDT | 4:23 AM | 4:50 AM | 5:23 AM |
| Aug 15EDT | 4:39 AM | 5:07 AM | 5:39 AM |
| Sep 1EDT | 4:58 AM | 5:28 AM | 5:58 AM |
| Sep 15EDT | 5:14 AM | 5:45 AM | 6:14 AM |
| Oct 1EDT | 5:33 AM | 6:04 AM | 6:33 AM |
| Oct 15EDT | 5:50 AM | 6:21 AM | 6:50 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
Runway 01/19
2,400 × 50 ft · Asphalt
Helipad H1
40 × 40 ft · Asphalt
Frequencies
Night at 57B, in short
When can I log night time at 57B?
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 4:49 PM to 5:50 AM EST.
When do landings at 57B 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 5:21 AM EST.
When are position lights required at 57B?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 4:19 PM to 6:21 AM EST.
Nearby airports
- KBST Belfast Municipal Belfast, ME · 8 nm
- 93B Stonington Municipal Stonington, ME · 13 nm
- KRKD Knox County Regional Rockland, ME · 17 nm
- ME5 Banks Swans Island, ME · 22 nm
- KBHB Hancock County/Bar Harbor Bar Harbor, ME · 25 nm
- 0B2 Brewer Brewer, ME · 28 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.