O79 Sierraville Dearwater night times
Sierraville, CA
Night of Nov 6 to Nov 7PST
Position lights
§ 91.2094:54 PMto6:37 AM
Sunset to sunrise. Lights on.
0054Z to 1437Z
Night logging
§ 1.15:22 PMto6:08 AM
Civil twilight. Log it as night.
0122Z to 1408Z
Night currency
§ 61.57(b)5:54 PMto5:37 AM
One hour after sunset. Landings count.
0154Z to 1337Z
Evenings at O79
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1PST | 4:59 PM | 5:27 PM | 5:59 PM |
| Nov 15PST | 4:46 PM | 5:15 PM | 5:46 PM |
| Dec 1PST | 4:38 PM | 5:08 PM | 5:38 PM |
| Dec 15PST | 4:38 PM | 5:09 PM | 5:38 PM |
| Jan 1PST | 4:48 PM | 5:18 PM | 5:48 PM |
| Jan 15PST | 5:02 PM | 5:31 PM | 6:02 PM |
| Feb 1PST | 5:21 PM | 5:50 PM | 6:21 PM |
| Feb 15PST | 5:38 PM | 6:05 PM | 6:38 PM |
| Mar 1PST | 5:54 PM | 6:21 PM | 6:54 PM |
| Mar 15PDT | 7:08 PM | 7:35 PM | 8:08 PM |
| Apr 1PDT | 7:25 PM | 7:53 PM | 8:25 PM |
| Apr 15PDT | 7:39 PM | 8:07 PM | 8:39 PM |
| May 1PDT | 7:55 PM | 8:24 PM | 8:55 PM |
| May 15PDT | 8:09 PM | 8:39 PM | 9:09 PM |
| Jun 1PDT | 8:23 PM | 8:55 PM | 9:23 PM |
| Jun 15PDT | 8:31 PM | 9:03 PM | 9:31 PM |
| Jul 1PDT | 8:33 PM | 9:05 PM | 9:33 PM |
| Jul 15PDT | 8:28 PM | 9:00 PM | 9:28 PM |
| Aug 1PDT | 8:14 PM | 8:44 PM | 9:14 PM |
| Aug 15PDT | 7:57 PM | 8:26 PM | 8:57 PM |
| Sep 1PDT | 7:33 PM | 8:00 PM | 8:33 PM |
| Sep 15PDT | 7:10 PM | 7:37 PM | 8:10 PM |
| Oct 1PDT | 6:44 PM | 7:11 PM | 7:44 PM |
| Oct 15PDT | 6:22 PM | 6:49 PM | 7:22 PM |
Mornings at O79
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1PST | 5:30 AM | 6:02 AM | 6:30 AM |
| Nov 15PST | 5:46 AM | 6:17 AM | 6:46 AM |
| Dec 1PST | 6:03 AM | 6:33 AM | 7:03 AM |
| Dec 15PST | 6:15 AM | 6:45 AM | 7:15 AM |
| Jan 1PST | 6:22 AM | 6:52 AM | 7:22 AM |
| Jan 15PST | 6:20 AM | 6:51 AM | 7:20 AM |
| Feb 1PST | 6:09 AM | 6:41 AM | 7:09 AM |
| Feb 15PST | 5:54 AM | 6:26 AM | 6:54 AM |
| Mar 1PST | 5:34 AM | 6:07 AM | 6:34 AM |
| Mar 15PDT | 6:13 AM | 6:46 AM | 7:13 AM |
| Apr 1PDT | 5:46 AM | 6:19 AM | 6:46 AM |
| Apr 15PDT | 5:24 AM | 5:56 AM | 6:24 AM |
| May 1PDT | 5:02 AM | 5:33 AM | 6:02 AM |
| May 15PDT | 4:47 AM | 5:17 AM | 5:47 AM |
| Jun 1PDT | 4:36 AM | 5:04 AM | 5:36 AM |
| Jun 15PDT | 4:33 AM | 5:01 AM | 5:33 AM |
| Jul 1PDT | 4:38 AM | 5:05 AM | 5:38 AM |
| Jul 15PDT | 4:46 AM | 5:15 AM | 5:46 AM |
| Aug 1PDT | 5:01 AM | 5:31 AM | 6:01 AM |
| Aug 15PDT | 5:14 AM | 5:45 AM | 6:14 AM |
| Sep 1PDT | 5:30 AM | 6:02 AM | 6:30 AM |
| Sep 15PDT | 5:43 AM | 6:15 AM | 6:43 AM |
| Oct 1PDT | 5:58 AM | 6:31 AM | 6:58 AM |
| Oct 15PDT | 6:11 AM | 6:44 AM | 7:11 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
Runway 03/21
3,093 × 50 ft · Asphalt
Frequencies
Night at O79, in short
When can I log night time at O79?
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 5:22 PM to 6:08 AM PST.
When do landings at O79 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 5:54 PM to 5:37 AM PST.
When are position lights required at O79?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 4:54 PM to 6:37 AM PST.
Nearby airports
- O02 Nervino Beckwourth, CA · 14 nm
- KTRK Truckee-Tahoe Truckee, CA · 19 nm
- KRTS Reno/Stead Reno, NV · 23 nm
- KBLU Blue Canyon - Nyack Emigrant Gap, CA · 25 nm
- KRNO Reno/Tahoe International Reno, NV · 28 nm
- H37 Herlong Herlong, CA · 34 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.