18V Platte Valley Airpark night times
Hudson, CO
Night of Nov 6 to Nov 7MST
Position lights
§ 91.2094:50 PMto6:35 AM
Sunset to sunrise. Lights on.
2350Z to 1335Z
Night logging
§ 1.15:19 PMto6:07 AM
Civil twilight. Log it as night.
0019Z to 1307Z
Night currency
§ 61.57(b)5:50 PMto5:35 AM
One hour after sunset. Landings count.
0050Z to 1235Z
Evenings at 18V
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1MST | 4:56 PM | 5:24 PM | 5:56 PM |
| Nov 15MST | 4:42 PM | 5:11 PM | 5:42 PM |
| Dec 1MST | 4:34 PM | 5:04 PM | 5:34 PM |
| Dec 15MST | 4:34 PM | 5:05 PM | 5:34 PM |
| Jan 1MST | 4:44 PM | 5:14 PM | 5:44 PM |
| Jan 15MST | 4:58 PM | 5:27 PM | 5:58 PM |
| Feb 1MST | 5:18 PM | 5:46 PM | 6:18 PM |
| Feb 15MST | 5:34 PM | 6:02 PM | 6:34 PM |
| Mar 1MST | 5:50 PM | 6:18 PM | 6:50 PM |
| Mar 15MDT | 7:06 PM | 7:33 PM | 8:06 PM |
| Apr 1MDT | 7:23 PM | 7:50 PM | 8:23 PM |
| Apr 15MDT | 7:37 PM | 8:06 PM | 8:37 PM |
| May 1MDT | 7:54 PM | 8:23 PM | 8:54 PM |
| May 15MDT | 8:08 PM | 8:38 PM | 9:08 PM |
| Jun 1MDT | 8:22 PM | 8:54 PM | 9:22 PM |
| Jun 15MDT | 8:30 PM | 9:03 PM | 9:30 PM |
| Jul 1MDT | 8:32 PM | 9:05 PM | 9:32 PM |
| Jul 15MDT | 8:27 PM | 8:59 PM | 9:27 PM |
| Aug 1MDT | 8:13 PM | 8:43 PM | 9:13 PM |
| Aug 15MDT | 7:56 PM | 8:25 PM | 8:56 PM |
| Sep 1MDT | 7:30 PM | 7:58 PM | 8:30 PM |
| Sep 15MDT | 7:08 PM | 7:35 PM | 8:08 PM |
| Oct 1MDT | 6:41 PM | 7:08 PM | 7:41 PM |
| Oct 15MDT | 6:19 PM | 6:47 PM | 7:19 PM |
Mornings at 18V
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1MST | 5:28 AM | 6:00 AM | 6:28 AM |
| Nov 15MST | 5:44 AM | 6:15 AM | 6:44 AM |
| Dec 1MST | 6:02 AM | 6:32 AM | 7:02 AM |
| Dec 15MST | 6:14 AM | 6:43 AM | 7:14 AM |
| Jan 1MST | 6:21 AM | 6:51 AM | 7:21 AM |
| Jan 15MST | 6:19 AM | 6:49 AM | 7:19 AM |
| Feb 1MST | 6:08 AM | 6:39 AM | 7:08 AM |
| Feb 15MST | 5:52 AM | 6:24 AM | 6:52 AM |
| Mar 1MST | 5:32 AM | 6:05 AM | 6:32 AM |
| Mar 15MDT | 6:10 AM | 6:43 AM | 7:10 AM |
| Apr 1MDT | 5:43 AM | 6:16 AM | 6:43 AM |
| Apr 15MDT | 5:21 AM | 5:53 AM | 6:21 AM |
| May 1MDT | 4:59 AM | 5:29 AM | 5:59 AM |
| May 15MDT | 4:43 AM | 5:13 AM | 5:43 AM |
| Jun 1MDT | 4:32 AM | 5:00 AM | 5:32 AM |
| Jun 15MDT | 4:29 AM | 4:56 AM | 5:29 AM |
| Jul 1MDT | 4:33 AM | 5:01 AM | 5:33 AM |
| Jul 15MDT | 4:42 AM | 5:10 AM | 5:42 AM |
| Aug 1MDT | 4:57 AM | 5:27 AM | 5:57 AM |
| Aug 15MDT | 5:10 AM | 5:41 AM | 6:10 AM |
| Sep 1MDT | 5:26 AM | 5:59 AM | 6:26 AM |
| Sep 15MDT | 5:40 AM | 6:12 AM | 6:40 AM |
| Oct 1MDT | 5:55 AM | 6:28 AM | 6:55 AM |
| Oct 15MDT | 6:09 AM | 6:42 AM | 7:09 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
Runway 09/27
2,500 × 90 ft · Turf
Runway 15/33
4,100 × 40 ft · Asphalt
Frequencies
Night at 18V, in short
When can I log night time at 18V?
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 5:19 PM to 6:07 AM MST.
When do landings at 18V 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 5:50 PM to 5:35 AM MST.
When are position lights required at 18V?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 4:50 PM to 6:35 AM MST.
Nearby airports
- 11V Easton/Valley View Greeley, CO · 14 nm
- KDEN Denver International Denver, CO · 15 nm
- KEIK Erie Municipal Erie, CO · 17 nm
- KGXY Greeley-Weld County Greeley, CO · 20 nm
- KCFO Colorado Air And Space Port Denver, CO · 21 nm
- KLMO Vance Brand Longmont, CO · 22 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.