KATY Watertown Regional night times
Watertown, SD · FAA ATY
Night of Nov 6 to Nov 7CST
Position lights
§ 91.2095:10 PMto7:15 AM
Sunset to sunrise. Lights on.
2310Z to 1315Z
Night logging
§ 1.15:41 PMto6:44 AM
Civil twilight. Log it as night.
2341Z to 1244Z
Night currency
§ 61.57(b)6:10 PMto6:15 AM
One hour after sunset. Landings count.
0010Z to 1215Z
Evenings at KATY
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1CST | 5:17 PM | 5:47 PM | 6:17 PM |
| Nov 15CST | 5:00 PM | 5:32 PM | 6:00 PM |
| Dec 1CST | 4:49 PM | 5:22 PM | 5:49 PM |
| Dec 15CST | 4:48 PM | 5:22 PM | 5:48 PM |
| Jan 1CST | 4:58 PM | 5:32 PM | 5:58 PM |
| Jan 15CST | 5:13 PM | 5:46 PM | 6:13 PM |
| Feb 1CST | 5:37 PM | 6:08 PM | 6:37 PM |
| Feb 15CST | 5:57 PM | 6:27 PM | 6:57 PM |
| Mar 1CST | 6:16 PM | 6:45 PM | 7:16 PM |
| Mar 15CDT | 7:35 PM | 8:04 PM | 8:35 PM |
| Apr 1CDT | 7:56 PM | 8:26 PM | 8:56 PM |
| Apr 15CDT | 8:14 PM | 8:45 PM | 9:14 PM |
| May 1CDT | 8:34 PM | 9:06 PM | 9:34 PM |
| May 15CDT | 8:51 PM | 9:25 PM | 9:51 PM |
| Jun 1CDT | 9:08 PM | 9:44 PM | 10:08 PM |
| Jun 15CDT | 9:17 PM | 9:54 PM | 10:17 PM |
| Jul 1CDT | 9:19 PM | 9:56 PM | 10:19 PM |
| Jul 15CDT | 9:12 PM | 9:48 PM | 10:12 PM |
| Aug 1CDT | 8:55 PM | 9:29 PM | 9:55 PM |
| Aug 15CDT | 8:35 PM | 9:07 PM | 9:35 PM |
| Sep 1CDT | 8:06 PM | 8:36 PM | 9:06 PM |
| Sep 15CDT | 7:40 PM | 8:09 PM | 8:40 PM |
| Oct 1CDT | 7:09 PM | 7:38 PM | 8:09 PM |
| Oct 15CDT | 6:44 PM | 7:13 PM | 7:44 PM |
Mornings at KATY
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1CST | 6:07 AM | 6:37 AM | 7:07 AM |
| Nov 15CST | 6:26 AM | 6:55 AM | 7:26 AM |
| Dec 1CST | 6:46 AM | 7:13 AM | 7:46 AM |
| Dec 15CST | 7:00 AM | 7:26 AM | 8:00 AM |
| Jan 1CST | 7:07 AM | 7:33 AM | 8:07 AM |
| Jan 15CST | 7:03 AM | 7:30 AM | 8:03 AM |
| Feb 1CST | 6:48 AM | 7:17 AM | 7:48 AM |
| Feb 15CST | 6:29 AM | 6:59 AM | 7:29 AM |
| Mar 1CST | 6:07 AM | 6:37 AM | 7:07 AM |
| Mar 15CDT | 6:41 AM | 7:12 AM | 7:41 AM |
| Apr 1CDT | 6:10 AM | 6:40 AM | 7:10 AM |
| Apr 15CDT | 5:44 AM | 6:14 AM | 6:44 AM |
| May 1CDT | 5:18 AM | 5:46 AM | 6:18 AM |
| May 15CDT | 5:00 AM | 5:26 AM | 6:00 AM |
| Jun 1CDT | 4:46 AM | 5:09 AM | 5:46 AM |
| Jun 15CDT | 4:42 AM | 5:04 AM | 5:42 AM |
| Jul 1CDT | 4:46 AM | 5:09 AM | 5:46 AM |
| Jul 15CDT | 4:57 AM | 5:21 AM | 5:57 AM |
| Aug 1CDT | 5:14 AM | 5:40 AM | 6:14 AM |
| Aug 15CDT | 5:30 AM | 5:59 AM | 6:30 AM |
| Sep 1CDT | 5:51 AM | 6:20 AM | 6:51 AM |
| Sep 15CDT | 6:07 AM | 6:38 AM | 7:07 AM |
| Oct 1CDT | 6:26 AM | 6:57 AM | 7:26 AM |
| Oct 15CDT | 6:44 AM | 7:15 AM | 7:44 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
ACTVT MALSR RWY 35; PAPI RWY 12, 17, 30, & 35; HIRL RWY 17/35; MIRL RWY 12/30; REIL RWY 12, 17, & 30 - CTAF.
Runway 12/30
6,898 × 100 ft · Concrete
Runway 17/35
6,893 × 100 ft · Concrete
Frequencies
Night at KATY, in short
When can I log night time at KATY?
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 5:41 PM to 6:44 AM CST.
When do landings at KATY 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 6:10 PM to 6:15 AM CST.
When are position lights required at KATY?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 5:10 PM to 7:15 AM CST.
Nearby airports
- 8D7 Clark County Clark, SD · 24 nm
- 1D7 The Sigurd Anderson Webster, SD · 27 nm
- 3A9 Arlington Municipal Arlington, SD · 31 nm
- 1D1 Milbank Municipal Milbank, SD · 31 nm
- SD2 Lake Cochrane Gary, SD · 31 nm
- 6E5 Wilder Desmet, SD · 34 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.