KGRB Green Bay/Austin Straubel International night times
Green Bay, WI · FAA GRB
Night of Nov 6 to Nov 7CST
Position lights
§ 91.2094:35 PMto6:38 AM
Sunset to sunrise. Lights on.
2235Z to 1238Z
Night logging
§ 1.15:06 PMto6:07 AM
Civil twilight. Log it as night.
2306Z to 1207Z
Night currency
§ 61.57(b)5:35 PMto5:38 AM
One hour after sunset. Landings count.
2335Z to 1138Z
Evenings at KGRB
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1CST | 4:41 PM | 5:12 PM | 5:41 PM |
| Nov 15CST | 4:25 PM | 4:56 PM | 5:25 PM |
| Dec 1CST | 4:14 PM | 4:47 PM | 5:14 PM |
| Dec 15CST | 4:13 PM | 4:47 PM | 5:13 PM |
| Jan 1CST | 4:23 PM | 4:57 PM | 5:23 PM |
| Jan 15CST | 4:39 PM | 5:11 PM | 5:39 PM |
| Feb 1CST | 5:02 PM | 5:32 PM | 6:02 PM |
| Feb 15CST | 5:21 PM | 5:51 PM | 6:21 PM |
| Mar 1CST | 5:40 PM | 6:09 PM | 6:40 PM |
| Mar 15CDT | 6:58 PM | 7:27 PM | 7:58 PM |
| Apr 1CDT | 7:20 PM | 7:49 PM | 8:20 PM |
| Apr 15CDT | 7:37 PM | 8:08 PM | 8:37 PM |
| May 1CDT | 7:57 PM | 8:29 PM | 8:57 PM |
| May 15CDT | 8:13 PM | 8:47 PM | 9:13 PM |
| Jun 1CDT | 8:30 PM | 9:06 PM | 9:30 PM |
| Jun 15CDT | 8:39 PM | 9:16 PM | 9:39 PM |
| Jul 1CDT | 8:41 PM | 9:18 PM | 9:41 PM |
| Jul 15CDT | 8:35 PM | 9:10 PM | 9:35 PM |
| Aug 1CDT | 8:18 PM | 8:51 PM | 9:18 PM |
| Aug 15CDT | 7:58 PM | 8:30 PM | 8:58 PM |
| Sep 1CDT | 7:29 PM | 7:59 PM | 8:29 PM |
| Sep 15CDT | 7:03 PM | 7:33 PM | 8:03 PM |
| Oct 1CDT | 6:33 PM | 7:02 PM | 7:33 PM |
| Oct 15CDT | 6:08 PM | 6:38 PM | 7:08 PM |
Mornings at KGRB
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1CST | 5:30 AM | 6:00 AM | 6:30 AM |
| Nov 15CST | 5:49 AM | 6:17 AM | 6:49 AM |
| Dec 1CST | 6:09 AM | 6:36 AM | 7:09 AM |
| Dec 15CST | 6:22 AM | 6:49 AM | 7:22 AM |
| Jan 1CST | 6:29 AM | 6:56 AM | 7:29 AM |
| Jan 15CST | 6:26 AM | 6:53 AM | 7:26 AM |
| Feb 1CST | 6:11 AM | 6:40 AM | 7:11 AM |
| Feb 15CST | 5:53 AM | 6:23 AM | 6:53 AM |
| Mar 1CST | 5:30 AM | 6:01 AM | 6:30 AM |
| Mar 15CDT | 6:05 AM | 6:36 AM | 7:05 AM |
| Apr 1CDT | 5:34 AM | 6:04 AM | 6:34 AM |
| Apr 15CDT | 5:09 AM | 5:39 AM | 6:09 AM |
| May 1CDT | 4:43 AM | 5:11 AM | 5:43 AM |
| May 15CDT | 4:25 AM | 4:51 AM | 5:25 AM |
| Jun 1CDT | 4:11 AM | 4:35 AM | 5:11 AM |
| Jun 15CDT | 4:07 AM | 4:30 AM | 5:07 AM |
| Jul 1CDT | 4:12 AM | 4:35 AM | 5:12 AM |
| Jul 15CDT | 4:22 AM | 4:46 AM | 5:22 AM |
| Aug 1CDT | 4:39 AM | 5:06 AM | 5:39 AM |
| Aug 15CDT | 4:55 AM | 5:24 AM | 5:55 AM |
| Sep 1CDT | 5:15 AM | 5:45 AM | 6:15 AM |
| Sep 15CDT | 5:31 AM | 6:02 AM | 6:31 AM |
| Oct 1CDT | 5:50 AM | 6:21 AM | 6:50 AM |
| Oct 15CDT | 6:08 AM | 6:38 AM | 7:08 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
ACTVT MALSR RWY 06 & 36; REIL RWY 18; HIRL RWY 06/24 & 18/36 - CTAF. PAPI RWY 06, 18, 24 & 36 OPR CONSLY. WHEN ATCT CLSD PREFERRED RWY PRESET ON LOW OR MED INTST; INCR INTST - CTAF.
Runway 06/24
7,700 × 150 ft · Concrete
Runway 18/36
8,700 × 150 ft · Concrete
Frequencies
Night at KGRB, in short
When can I log night time at KGRB?
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 5:06 PM to 6:07 AM CST.
When do landings at KGRB 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 5:35 PM to 5:38 AM CST.
When are position lights required at KGRB?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 4:35 PM to 6:38 AM CST.
Nearby airports
- 92C Carter Pulaski, WI · 10 nm
- W34 Shiocton Shiocton, WI · 19 nm
- KATW Appleton International Appleton, WI · 22 nm
- KOCQ Oconto/J Douglas Bake Municipal Oconto, WI · 25 nm
- 11Y Flying Feathers Chilton, WI · 25 nm
- KEZS Shawano Municipal Shawano, WI · 26 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.