L37 Grand Canyon Caverns night times
Peach Springs, AZ
Night of Nov 6 to Nov 7MST
Position lights
§ 91.2095:33 PMto7:01 AM
Sunset to sunrise. Lights on.
0033Z to 1401Z
Night logging
§ 1.16:00 PMto6:34 AM
Civil twilight. Log it as night.
0100Z to 1334Z
Night currency
§ 61.57(b)6:33 PMto6:01 AM
One hour after sunset. Landings count.
0133Z to 1301Z
Evenings at L37
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1MST | 5:38 PM | 6:04 PM | 6:38 PM |
| Nov 15MST | 5:26 PM | 5:53 PM | 6:26 PM |
| Dec 1MST | 5:20 PM | 5:48 PM | 6:20 PM |
| Dec 15MST | 5:21 PM | 5:50 PM | 6:21 PM |
| Jan 1MST | 5:31 PM | 5:59 PM | 6:31 PM |
| Jan 15MST | 5:43 PM | 6:11 PM | 6:43 PM |
| Feb 1MST | 6:01 PM | 6:28 PM | 7:01 PM |
| Feb 15MST | 6:15 PM | 6:41 PM | 7:15 PM |
| Mar 1MST | 6:28 PM | 6:54 PM | 7:28 PM |
| Mar 15MST | 6:40 PM | 7:06 PM | 7:40 PM |
| Apr 1MST | 6:55 PM | 7:20 PM | 7:55 PM |
| Apr 15MST | 7:06 PM | 7:32 PM | 8:06 PM |
| May 1MST | 7:19 PM | 7:47 PM | 8:19 PM |
| May 15MST | 7:31 PM | 7:59 PM | 8:31 PM |
| Jun 1MST | 7:43 PM | 8:13 PM | 8:43 PM |
| Jun 15MST | 7:50 PM | 8:20 PM | 8:50 PM |
| Jul 1MST | 7:52 PM | 8:22 PM | 8:52 PM |
| Jul 15MST | 7:49 PM | 8:18 PM | 8:49 PM |
| Aug 1MST | 7:37 PM | 8:05 PM | 8:37 PM |
| Aug 15MST | 7:22 PM | 7:49 PM | 8:22 PM |
| Sep 1MST | 7:00 PM | 7:26 PM | 8:00 PM |
| Sep 15MST | 6:40 PM | 7:06 PM | 7:40 PM |
| Oct 1MST | 6:17 PM | 6:42 PM | 7:17 PM |
| Oct 15MST | 5:58 PM | 6:23 PM | 6:58 PM |
Mornings at L37
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1MST | 5:55 AM | 6:29 AM | 6:55 AM |
| Nov 15MST | 6:09 AM | 6:42 AM | 7:09 AM |
| Dec 1MST | 6:24 AM | 6:56 AM | 7:24 AM |
| Dec 15MST | 6:35 AM | 7:07 AM | 7:35 AM |
| Jan 1MST | 6:42 AM | 7:14 AM | 7:42 AM |
| Jan 15MST | 6:42 AM | 7:14 AM | 7:42 AM |
| Feb 1MST | 6:33 AM | 7:06 AM | 7:33 AM |
| Feb 15MST | 6:20 AM | 6:54 AM | 7:20 AM |
| Mar 1MST | 6:03 AM | 6:37 AM | 7:03 AM |
| Mar 15MST | 5:44 AM | 6:18 AM | 6:44 AM |
| Apr 1MST | 5:20 AM | 5:54 AM | 6:20 AM |
| Apr 15MST | 5:01 AM | 5:34 AM | 6:01 AM |
| May 1MST | 4:41 AM | 5:14 AM | 5:41 AM |
| May 15MST | 4:28 AM | 5:00 AM | 5:28 AM |
| Jun 1MST | 4:19 AM | 4:49 AM | 5:19 AM |
| Jun 15MST | 4:17 AM | 4:47 AM | 5:17 AM |
| Jul 1MST | 4:21 AM | 4:51 AM | 5:21 AM |
| Jul 15MST | 4:29 AM | 5:00 AM | 5:29 AM |
| Aug 1MST | 4:41 AM | 5:13 AM | 5:41 AM |
| Aug 15MST | 4:52 AM | 5:25 AM | 5:52 AM |
| Sep 1MST | 5:05 AM | 5:39 AM | 6:05 AM |
| Sep 15MST | 5:16 AM | 5:50 AM | 6:16 AM |
| Oct 1MST | 5:28 AM | 6:02 AM | 6:28 AM |
| Oct 15MST | 5:39 AM | 6:14 AM | 6:39 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
Runway 05/23
5,100 × 45 ft · GRAVEL
Frequencies
Night at L37, in short
When can I log night time at L37?
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 6:00 PM to 6:34 AM MST.
When do landings at L37 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 6:33 PM to 6:01 AM MST.
When are position lights required at L37?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 5:33 PM to 7:01 AM MST.
Nearby airports
- P23 Seligman Seligman, AZ · 21 nm
- KIGM Kingman Kingman, AZ · 37 nm
- 1G4 Grand Canyon West Peach Springs, AZ · 39 nm
- 1Z1 Grand Canyon Bar Ten Airstrip Whitmore, AZ · 44 nm
- L25 Pearce Ferry Meadview, AZ · 52 nm
- KCMR H A Clark Memorial Field Williams, AZ · 53 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.