CYOS Owen Sound Billy Bishop Regional night times
Owen Sound
Night of Nov 6 to Nov 7EST
Position lights
§ 91.2095:06 PMto7:09 AM
Sunset to sunrise. Lights on.
2206Z to 1209Z
Night logging
§ 1.15:36 PMto6:38 AM
Civil twilight. Log it as night.
2236Z to 1138Z
Night currency
§ 61.57(b)6:06 PMto6:09 AM
One hour after sunset. Landings count.
2306Z to 1109Z
Evenings at CYOS
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1EST | 5:12 PM | 5:43 PM | 6:12 PM |
| Nov 15EST | 4:55 PM | 5:27 PM | 5:55 PM |
| Dec 1EST | 4:45 PM | 5:17 PM | 5:45 PM |
| Dec 15EST | 4:44 PM | 5:17 PM | 5:44 PM |
| Jan 1EST | 4:54 PM | 5:27 PM | 5:54 PM |
| Jan 15EST | 5:09 PM | 5:42 PM | 6:09 PM |
| Feb 1EST | 5:32 PM | 6:03 PM | 6:32 PM |
| Feb 15EST | 5:52 PM | 6:22 PM | 6:52 PM |
| Mar 1EST | 6:11 PM | 6:40 PM | 7:11 PM |
| Mar 15EDT | 7:29 PM | 7:58 PM | 8:29 PM |
| Apr 1EDT | 7:51 PM | 8:20 PM | 8:51 PM |
| Apr 15EDT | 8:08 PM | 8:39 PM | 9:08 PM |
| May 1EDT | 8:28 PM | 9:00 PM | 9:28 PM |
| May 15EDT | 8:44 PM | 9:18 PM | 9:44 PM |
| Jun 1EDT | 9:01 PM | 9:37 PM | 10:01 PM |
| Jun 15EDT | 9:10 PM | 9:47 PM | 10:10 PM |
| Jul 1EDT | 9:12 PM | 9:49 PM | 10:12 PM |
| Jul 15EDT | 9:06 PM | 9:41 PM | 10:06 PM |
| Aug 1EDT | 8:49 PM | 9:22 PM | 9:49 PM |
| Aug 15EDT | 8:29 PM | 9:01 PM | 9:29 PM |
| Sep 1EDT | 8:00 PM | 8:30 PM | 9:00 PM |
| Sep 15EDT | 7:34 PM | 8:04 PM | 8:34 PM |
| Oct 1EDT | 7:04 PM | 7:33 PM | 8:04 PM |
| Oct 15EDT | 6:39 PM | 7:08 PM | 7:39 PM |
Mornings at CYOS
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1EST | 6:01 AM | 6:31 AM | 7:01 AM |
| Nov 15EST | 6:20 AM | 6:49 AM | 7:20 AM |
| Dec 1EST | 6:40 AM | 7:07 AM | 7:40 AM |
| Dec 15EST | 6:53 AM | 7:20 AM | 7:53 AM |
| Jan 1EST | 7:00 AM | 7:27 AM | 8:00 AM |
| Jan 15EST | 6:57 AM | 7:24 AM | 7:57 AM |
| Feb 1EST | 6:42 AM | 7:11 AM | 7:42 AM |
| Feb 15EST | 6:24 AM | 6:54 AM | 7:24 AM |
| Mar 1EST | 6:01 AM | 6:32 AM | 7:01 AM |
| Mar 15EDT | 6:36 AM | 7:07 AM | 7:36 AM |
| Apr 1EDT | 6:05 AM | 6:35 AM | 7:05 AM |
| Apr 15EDT | 5:40 AM | 6:09 AM | 6:40 AM |
| May 1EDT | 5:14 AM | 5:42 AM | 6:14 AM |
| May 15EDT | 4:56 AM | 5:22 AM | 5:56 AM |
| Jun 1EDT | 4:42 AM | 5:06 AM | 5:42 AM |
| Jun 15EDT | 4:38 AM | 5:01 AM | 5:38 AM |
| Jul 1EDT | 4:42 AM | 5:05 AM | 5:42 AM |
| Jul 15EDT | 4:52 AM | 5:17 AM | 5:52 AM |
| Aug 1EDT | 5:10 AM | 5:36 AM | 6:10 AM |
| Aug 15EDT | 5:26 AM | 5:54 AM | 6:26 AM |
| Sep 1EDT | 5:46 AM | 6:16 AM | 6:46 AM |
| Sep 15EDT | 6:02 AM | 6:33 AM | 7:02 AM |
| Oct 1EDT | 6:21 AM | 6:52 AM | 7:21 AM |
| Oct 15EDT | 6:38 AM | 7:09 AM | 7:38 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
Runway 18/36
3,932 × 75 ft · Asphalt
Night at CYOS, in short
When can I log night time at CYOS?
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 5:36 PM to 6:38 AM EST.
When do landings at CYOS 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 6:06 PM to 6:09 AM EST.
When are position lights required at CYOS?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 5:06 PM to 7:09 AM EST.
Nearby airports
- CYVV Wiarton Wiarton · 15 nm
- CYLS Lake Simcoe Regional Barrie-Orillia · 55 nm
- CYQA Muskoka Muskoka · 69 nm
- CYYZ Lester B Pearson International Toronto · 76 nm
- CYTZ Toronto/City Centre Toronto · 85 nm
- CYOO Oshawa Oshawa · 93 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.