Y31 West Branch Community night times
West Branch, MI
Night of Nov 6 to Nov 7EST
Position lights
§ 91.2095:20 PMto7:22 AM
Sunset to sunrise. Lights on.
2220Z to 1222Z
Night logging
§ 1.15:50 PMto6:51 AM
Civil twilight. Log it as night.
2250Z to 1151Z
Night currency
§ 61.57(b)6:20 PMto6:22 AM
One hour after sunset. Landings count.
2320Z to 1122Z
Evenings at Y31
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1EST | 5:26 PM | 5:56 PM | 6:26 PM |
| Nov 15EST | 5:10 PM | 5:41 PM | 6:10 PM |
| Dec 1EST | 4:59 PM | 5:32 PM | 5:59 PM |
| Dec 15EST | 4:58 PM | 5:32 PM | 5:58 PM |
| Jan 1EST | 5:08 PM | 5:41 PM | 6:08 PM |
| Jan 15EST | 5:24 PM | 5:56 PM | 6:24 PM |
| Feb 1EST | 5:46 PM | 6:17 PM | 6:46 PM |
| Feb 15EST | 6:06 PM | 6:36 PM | 7:06 PM |
| Mar 1EST | 6:25 PM | 6:54 PM | 7:25 PM |
| Mar 15EDT | 7:43 PM | 8:12 PM | 8:43 PM |
| Apr 1EDT | 8:04 PM | 8:33 PM | 9:04 PM |
| Apr 15EDT | 8:21 PM | 8:51 PM | 9:21 PM |
| May 1EDT | 8:40 PM | 9:12 PM | 9:40 PM |
| May 15EDT | 8:57 PM | 9:30 PM | 9:57 PM |
| Jun 1EDT | 9:13 PM | 9:49 PM | 10:13 PM |
| Jun 15EDT | 9:22 PM | 9:59 PM | 10:22 PM |
| Jul 1EDT | 9:24 PM | 10:01 PM | 10:24 PM |
| Jul 15EDT | 9:18 PM | 9:53 PM | 10:18 PM |
| Aug 1EDT | 9:01 PM | 9:34 PM | 10:01 PM |
| Aug 15EDT | 8:42 PM | 9:13 PM | 9:42 PM |
| Sep 1EDT | 8:13 PM | 8:43 PM | 9:13 PM |
| Sep 15EDT | 7:47 PM | 8:17 PM | 8:47 PM |
| Oct 1EDT | 7:18 PM | 7:47 PM | 8:18 PM |
| Oct 15EDT | 6:53 PM | 7:22 PM | 7:53 PM |
Mornings at Y31
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1EST | 6:14 AM | 6:44 AM | 7:14 AM |
| Nov 15EST | 6:33 AM | 7:01 AM | 7:33 AM |
| Dec 1EST | 6:52 AM | 7:20 AM | 7:52 AM |
| Dec 15EST | 7:05 AM | 7:32 AM | 8:05 AM |
| Jan 1EST | 7:12 AM | 7:39 AM | 8:12 AM |
| Jan 15EST | 7:09 AM | 7:37 AM | 8:09 AM |
| Feb 1EST | 6:55 AM | 7:24 AM | 7:55 AM |
| Feb 15EST | 6:36 AM | 7:07 AM | 7:36 AM |
| Mar 1EST | 6:14 AM | 6:45 AM | 7:14 AM |
| Mar 15EDT | 6:49 AM | 7:20 AM | 7:49 AM |
| Apr 1EDT | 6:18 AM | 6:49 AM | 7:18 AM |
| Apr 15EDT | 5:53 AM | 6:23 AM | 6:53 AM |
| May 1EDT | 5:28 AM | 5:56 AM | 6:28 AM |
| May 15EDT | 5:10 AM | 5:37 AM | 6:10 AM |
| Jun 1EDT | 4:56 AM | 5:21 AM | 5:56 AM |
| Jun 15EDT | 4:52 AM | 5:16 AM | 5:52 AM |
| Jul 1EDT | 4:57 AM | 5:20 AM | 5:57 AM |
| Jul 15EDT | 5:07 AM | 5:32 AM | 6:07 AM |
| Aug 1EDT | 5:24 AM | 5:51 AM | 6:24 AM |
| Aug 15EDT | 5:40 AM | 6:08 AM | 6:40 AM |
| Sep 1EDT | 6:00 AM | 6:30 AM | 7:00 AM |
| Sep 15EDT | 6:16 AM | 6:46 AM | 7:16 AM |
| Oct 1EDT | 6:34 AM | 7:05 AM | 7:34 AM |
| Oct 15EDT | 6:51 AM | 7:22 AM | 7:51 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
ACTVT REIL RWY 09 & 27; PAPI RWY 09 & 27; MIRL RWY 09/27 - CTAF. PAPI RWY 09 & 27 OPR CONSLY SR-SS.
Runway 09/27
5,000 × 100 ft · Asphalt
Frequencies
Night at Y31, in short
When can I log night time at Y31?
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 5:50 PM to 6:51 AM EST.
When do landings at Y31 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 6:20 PM to 6:22 AM EST.
When are position lights required at Y31?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 5:20 PM to 7:22 AM EST.
Nearby airports
- M47 Sage Lake Hale, MI · 12 nm
- 6Y6 St Helen St Helen, MI · 12 nm
- 5M6 Sugar Springs Airpark Gladwin, MI · 13 nm
- H80 Field Of Dreams Hale, MI · 19 nm
- KGDW Gladwin Zettel Memorial Gladwin, MI · 21 nm
- 3RC Roscommon Conservation Roscommon, MI · 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.