KCYS Cheyenne Regional/Jerry Olson Field night times
Cheyenne, WY · FAA CYS
Night of Nov 6 to Nov 7MST
Position lights
§ 91.2094:49 PMto6:38 AM
Sunset to sunrise. Lights on.
2349Z to 1338Z
Night logging
§ 1.15:18 PMto6:09 AM
Civil twilight. Log it as night.
0018Z to 1309Z
Night currency
§ 61.57(b)5:49 PMto5:38 AM
One hour after sunset. Landings count.
0049Z to 1238Z
Evenings at KCYS
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1MST | 4:55 PM | 5:23 PM | 5:55 PM |
| Nov 15MST | 4:40 PM | 5:10 PM | 5:40 PM |
| Dec 1MST | 4:31 PM | 5:02 PM | 5:31 PM |
| Dec 15MST | 4:31 PM | 5:03 PM | 5:31 PM |
| Jan 1MST | 4:41 PM | 5:12 PM | 5:41 PM |
| Jan 15MST | 4:55 PM | 5:26 PM | 5:55 PM |
| Feb 1MST | 5:16 PM | 5:45 PM | 6:16 PM |
| Feb 15MST | 5:33 PM | 6:02 PM | 6:33 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 | 7:24 PM | 7:52 PM | 8:24 PM |
| Apr 15MDT | 7:39 PM | 8:08 PM | 8:39 PM |
| May 1MDT | 7:56 PM | 8:26 PM | 8:56 PM |
| May 15MDT | 8:11 PM | 8:42 PM | 9:11 PM |
| Jun 1MDT | 8:26 PM | 8:59 PM | 9:26 PM |
| Jun 15MDT | 8:34 PM | 9:07 PM | 9:34 PM |
| Jul 1MDT | 8:36 PM | 9:09 PM | 9:36 PM |
| Jul 15MDT | 8:31 PM | 9:03 PM | 9:31 PM |
| Aug 1MDT | 8:16 PM | 8:47 PM | 9:16 PM |
| Aug 15MDT | 7:58 PM | 8:28 PM | 8:58 PM |
| Sep 1MDT | 7:32 PM | 8:00 PM | 8:32 PM |
| Sep 15MDT | 7:09 PM | 7:36 PM | 8:09 PM |
| Oct 1MDT | 6:41 PM | 7:09 PM | 7:41 PM |
| Oct 15MDT | 6:19 PM | 6:46 PM | 7:19 PM |
Mornings at KCYS
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1MST | 5:31 AM | 6:02 AM | 6:31 AM |
| Nov 15MST | 5:47 AM | 6:18 AM | 6:47 AM |
| Dec 1MST | 6:05 AM | 6:35 AM | 7:05 AM |
| Dec 15MST | 6:18 AM | 6:46 AM | 7:18 AM |
| Jan 1MST | 6:25 AM | 6:54 AM | 7:25 AM |
| Jan 15MST | 6:22 AM | 6:52 AM | 7:22 AM |
| Feb 1MST | 6:10 AM | 6:41 AM | 7:10 AM |
| Feb 15MST | 5:54 AM | 6:26 AM | 6:54 AM |
| Mar 1MST | 5:34 AM | 6:06 AM | 6:34 AM |
| Mar 15MDT | 6:11 AM | 6:44 AM | 7:11 AM |
| Apr 1MDT | 5:43 AM | 6:15 AM | 6:43 AM |
| Apr 15MDT | 5:20 AM | 5:52 AM | 6:20 AM |
| May 1MDT | 4:57 AM | 5:27 AM | 5:57 AM |
| May 15MDT | 4:41 AM | 5:10 AM | 5:41 AM |
| Jun 1MDT | 4:29 AM | 4:56 AM | 5:29 AM |
| Jun 15MDT | 4:26 AM | 4:52 AM | 5:26 AM |
| Jul 1MDT | 4:30 AM | 4:57 AM | 5:30 AM |
| Jul 15MDT | 4:40 AM | 5:07 AM | 5:40 AM |
| Aug 1MDT | 4:55 AM | 5:24 AM | 5:55 AM |
| Aug 15MDT | 5:09 AM | 5:39 AM | 6:09 AM |
| Sep 1MDT | 5:26 AM | 5:57 AM | 6:26 AM |
| Sep 15MDT | 5:40 AM | 6:12 AM | 6:40 AM |
| Oct 1MDT | 5:56 AM | 6:28 AM | 6:56 AM |
| Oct 15MDT | 6:11 AM | 6:43 AM | 7:11 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
MILITARY: ANG: NO TWY EDGE LGT ON TWY C & TWY F. NSTD WHITE AGE BOX MKGS ON APN. NST FIRE LANE MRKS ON APN.
ACTVT MALSR RWY 27; REIL RWY 09, 13, 31; PAPI RWY 09, 27, 13, 31; HIRL RWY 09/27; MIRL RWY 13/31 - CTAF
Runway 09/27
9,270 × 150 ft · Concrete
Runway 13/31
6,690 × 150 ft · Asphalt
Frequencies
Night at KCYS, in short
When can I log night time at KCYS?
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 5:18 PM to 6:09 AM MST.
When do landings at KCYS 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 5:49 PM to 5:38 AM MST.
When are position lights required at KCYS?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 4:49 PM to 6:38 AM MST.
Nearby airports
- 82V Pine Bluffs Municipal Pine Bluffs, WY · 31 nm
- KLAR Laramie Regional Laramie, WY · 40 nm
- KFNL Northern Colorado Regional Fort Collins/Loveland, CO · 43 nm
- KGXY Greeley-Weld County Greeley, CO · 44 nm
- 11V Easton/Valley View Greeley, CO · 51 nm
- KIBM Kimball Municipal/Robert E Arraj Field Kimball, NE · 51 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.