87Y Blackhawk Airfield night times
Madison, WI
Night of Nov 6 to Nov 7CST
Position lights
§ 91.2094:42 PMto6:39 AM
Sunset to sunrise. Lights on.
2242Z to 1239Z
Night logging
§ 1.15:12 PMto6:09 AM
Civil twilight. Log it as night.
2312Z to 1209Z
Night currency
§ 61.57(b)5:42 PMto5:39 AM
One hour after sunset. Landings count.
2342Z to 1139Z
Evenings at 87Y
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1CST | 4:48 PM | 5:18 PM | 5:48 PM |
| Nov 15CST | 4:33 PM | 5:03 PM | 5:33 PM |
| Dec 1CST | 4:23 PM | 4:55 PM | 5:23 PM |
| Dec 15CST | 4:22 PM | 4:55 PM | 5:22 PM |
| Jan 1CST | 4:32 PM | 5:05 PM | 5:32 PM |
| Jan 15CST | 4:47 PM | 5:19 PM | 5:47 PM |
| Feb 1CST | 5:09 PM | 5:39 PM | 6:09 PM |
| Feb 15CST | 5:28 PM | 5:57 PM | 6:28 PM |
| Mar 1CST | 5:46 PM | 6:14 PM | 6:46 PM |
| Mar 15CDT | 7:03 PM | 7:31 PM | 8:03 PM |
| Apr 1CDT | 7:23 PM | 7:52 PM | 8:23 PM |
| Apr 15CDT | 7:39 PM | 8:09 PM | 8:39 PM |
| May 1CDT | 7:58 PM | 8:29 PM | 8:58 PM |
| May 15CDT | 8:13 PM | 8:46 PM | 9:13 PM |
| Jun 1CDT | 8:30 PM | 9:04 PM | 9:30 PM |
| Jun 15CDT | 8:38 PM | 9:13 PM | 9:38 PM |
| Jul 1CDT | 8:40 PM | 9:15 PM | 9:40 PM |
| Jul 15CDT | 8:34 PM | 9:08 PM | 9:34 PM |
| Aug 1CDT | 8:18 PM | 8:51 PM | 9:18 PM |
| Aug 15CDT | 7:59 PM | 8:30 PM | 8:59 PM |
| Sep 1CDT | 7:32 PM | 8:01 PM | 8:32 PM |
| Sep 15CDT | 7:07 PM | 7:35 PM | 8:07 PM |
| Oct 1CDT | 6:38 PM | 7:06 PM | 7:38 PM |
| Oct 15CDT | 6:14 PM | 6:43 PM | 7:14 PM |
Mornings at 87Y
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1CST | 5:32 AM | 6:02 AM | 6:32 AM |
| Nov 15CST | 5:50 AM | 6:19 AM | 6:50 AM |
| Dec 1CST | 6:09 AM | 6:37 AM | 7:09 AM |
| Dec 15CST | 6:22 AM | 6:49 AM | 7:22 AM |
| Jan 1CST | 6:28 AM | 6:56 AM | 7:28 AM |
| Jan 15CST | 6:26 AM | 6:54 AM | 7:26 AM |
| Feb 1CST | 6:12 AM | 6:42 AM | 7:12 AM |
| Feb 15CST | 5:55 AM | 6:25 AM | 6:55 AM |
| Mar 1CST | 5:33 AM | 6:04 AM | 6:33 AM |
| Mar 15CDT | 6:09 AM | 6:41 AM | 7:09 AM |
| Apr 1CDT | 5:39 AM | 6:10 AM | 6:39 AM |
| Apr 15CDT | 5:15 AM | 5:45 AM | 6:15 AM |
| May 1CDT | 4:51 AM | 5:19 AM | 5:51 AM |
| May 15CDT | 4:33 AM | 5:01 AM | 5:33 AM |
| Jun 1CDT | 4:20 AM | 4:46 AM | 5:20 AM |
| Jun 15CDT | 4:17 AM | 4:41 AM | 5:17 AM |
| Jul 1CDT | 4:21 AM | 4:46 AM | 5:21 AM |
| Jul 15CDT | 4:31 AM | 4:57 AM | 5:31 AM |
| Aug 1CDT | 4:47 AM | 5:15 AM | 5:47 AM |
| Aug 15CDT | 5:02 AM | 5:32 AM | 6:02 AM |
| Sep 1CDT | 5:21 AM | 5:52 AM | 6:21 AM |
| Sep 15CDT | 5:36 AM | 6:08 AM | 6:36 AM |
| Oct 1CDT | 5:54 AM | 6:26 AM | 6:54 AM |
| Oct 15CDT | 6:10 AM | 6:42 AM | 7:10 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
Runway 04/22
2,814 × 57 ft · Asphalt
Runway 09/27
2,150 × 56 ft · Asphalt
NSTD LIRL; RWY LGTS 2 FT TO 3 FT ABOVE RWY & NSTD SPACING. RWY 09/27 LGTD 1970 FT.
Frequencies
Night at 87Y, in short
When can I log night time at 87Y?
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 5:12 PM to 6:09 AM CST.
When do landings at 87Y 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 5:42 PM to 5:39 AM CST.
When are position lights required at 87Y?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 4:42 PM to 6:39 AM CST.
Nearby airports
- KMSN Dane County Regional/Truax Field Madison, WI · 7 nm
- 6P3 Waunakee Waunakee, WI · 12 nm
- 58C Jana Edgerton, WI · 15 nm
- C29 Middleton Municipal/Morey Field Middleton, WI · 15 nm
- 61C Fort Atkinson Municipal Fort Atkinson, WI · 18 nm
- KRYV Watertown Municipal Watertown, WI · 21 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.