O12 Grand Lake St Marys night times
St Marys, OH · Seaplane base
Night of Nov 6 to Nov 7EST
Position lights
§ 91.2095:29 PMto7:15 AM
Sunset to sunrise. Lights on.
2229Z to 1215Z
Night logging
§ 1.15:57 PMto6:46 AM
Civil twilight. Log it as night.
2257Z to 1146Z
Night currency
§ 61.57(b)6:29 PMto6:15 AM
One hour after sunset. Landings count.
2329Z to 1115Z
Evenings at O12
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1EST | 5:34 PM | 6:03 PM | 6:34 PM |
| Nov 15EST | 5:20 PM | 5:50 PM | 6:20 PM |
| Dec 1EST | 5:12 PM | 5:42 PM | 6:12 PM |
| Dec 15EST | 5:12 PM | 5:43 PM | 6:12 PM |
| Jan 1EST | 5:22 PM | 5:52 PM | 6:22 PM |
| Jan 15EST | 5:36 PM | 6:06 PM | 6:36 PM |
| Feb 1EST | 5:56 PM | 6:25 PM | 6:56 PM |
| Feb 15EST | 6:13 PM | 6:41 PM | 7:13 PM |
| Mar 1EST | 6:29 PM | 6:57 PM | 7:29 PM |
| Mar 15EDT | 7:45 PM | 8:12 PM | 8:45 PM |
| Apr 1EDT | 8:02 PM | 8:30 PM | 9:02 PM |
| Apr 15EDT | 8:17 PM | 8:45 PM | 9:17 PM |
| May 1EDT | 8:34 PM | 9:03 PM | 9:34 PM |
| May 15EDT | 8:48 PM | 9:19 PM | 9:48 PM |
| Jun 1EDT | 9:02 PM | 9:35 PM | 10:02 PM |
| Jun 15EDT | 9:10 PM | 9:44 PM | 10:10 PM |
| Jul 1EDT | 9:12 PM | 9:46 PM | 10:12 PM |
| Jul 15EDT | 9:07 PM | 9:40 PM | 10:07 PM |
| Aug 1EDT | 8:53 PM | 9:24 PM | 9:53 PM |
| Aug 15EDT | 8:36 PM | 9:05 PM | 9:36 PM |
| Sep 1EDT | 8:10 PM | 8:38 PM | 9:10 PM |
| Sep 15EDT | 7:47 PM | 8:14 PM | 8:47 PM |
| Oct 1EDT | 7:20 PM | 7:47 PM | 8:20 PM |
| Oct 15EDT | 6:58 PM | 7:26 PM | 7:58 PM |
Mornings at O12
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1EST | 6:08 AM | 6:40 AM | 7:08 AM |
| Nov 15EST | 6:25 AM | 6:55 AM | 7:25 AM |
| Dec 1EST | 6:42 AM | 7:12 AM | 7:42 AM |
| Dec 15EST | 6:54 AM | 7:24 AM | 7:54 AM |
| Jan 1EST | 7:01 AM | 7:31 AM | 8:01 AM |
| Jan 15EST | 6:59 AM | 7:29 AM | 7:59 AM |
| Feb 1EST | 6:48 AM | 7:19 AM | 7:48 AM |
| Feb 15EST | 6:32 AM | 7:04 AM | 7:32 AM |
| Mar 1EST | 6:12 AM | 6:45 AM | 7:12 AM |
| Mar 15EDT | 6:50 AM | 7:23 AM | 7:50 AM |
| Apr 1EDT | 6:22 AM | 6:54 AM | 7:22 AM |
| Apr 15EDT | 6:00 AM | 6:31 AM | 7:00 AM |
| May 1EDT | 5:37 AM | 6:08 AM | 6:37 AM |
| May 15EDT | 5:22 AM | 5:51 AM | 6:22 AM |
| Jun 1EDT | 5:10 AM | 5:37 AM | 6:10 AM |
| Jun 15EDT | 5:07 AM | 5:34 AM | 6:07 AM |
| Jul 1EDT | 5:11 AM | 5:38 AM | 6:11 AM |
| Jul 15EDT | 5:20 AM | 5:48 AM | 6:20 AM |
| Aug 1EDT | 5:35 AM | 6:04 AM | 6:35 AM |
| Aug 15EDT | 5:48 AM | 6:19 AM | 6:48 AM |
| Sep 1EDT | 6:05 AM | 6:37 AM | 7:05 AM |
| Sep 15EDT | 6:19 AM | 6:51 AM | 7:19 AM |
| Oct 1EDT | 6:34 AM | 7:07 AM | 7:34 AM |
| Oct 15EDT | 6:49 AM | 7:21 AM | 7:49 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
NO NGT OPS.
Runway 09W/27W
7,000 × 4000 ft · Water
Frequencies
Night at O12, in short
When can I log night time at O12?
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 5:57 PM to 6:46 AM EST.
When do landings at O12 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 6:29 PM to 6:15 AM EST.
When are position lights required at O12?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 5:29 PM to 7:15 AM EST.
Nearby airports
- KCQA Lakefield Celina, OH · 5 nm
- KAXV Neil Armstrong Wapakoneta, OH · 9 nm
- KVNW Van Wert County Van Wert, OH · 20 nm
- KVES Darke County Versailles, OH · 20 nm
- KAOH Lima Allen County Lima, OH · 23 nm
- KPLD Portland Municipal Portland, IN · 23 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.