KGGI Grinnell Regional night times
Grinnell, IA · FAA GGI
Night of Nov 6 to Nov 7CST
Position lights
§ 91.2094:59 PMto6:51 AM
Sunset to sunrise. Lights on.
2259Z to 1251Z
Night logging
§ 1.15:29 PMto6:21 AM
Civil twilight. Log it as night.
2329Z to 1221Z
Night currency
§ 61.57(b)5:59 PMto5:51 AM
One hour after sunset. Landings count.
2359Z to 1151Z
Evenings at KGGI
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1CST | 5:05 PM | 5:34 PM | 6:05 PM |
| Nov 15CST | 4:50 PM | 5:20 PM | 5:50 PM |
| Dec 1CST | 4:41 PM | 5:12 PM | 5:41 PM |
| Dec 15CST | 4:41 PM | 5:13 PM | 5:41 PM |
| Jan 1CST | 4:51 PM | 5:22 PM | 5:51 PM |
| Jan 15CST | 5:05 PM | 5:36 PM | 6:05 PM |
| Feb 1CST | 5:26 PM | 5:56 PM | 6:26 PM |
| Feb 15CST | 5:44 PM | 6:13 PM | 6:44 PM |
| Mar 1CST | 6:01 PM | 6:29 PM | 7:01 PM |
| Mar 15CDT | 7:17 PM | 7:45 PM | 8:17 PM |
| Apr 1CDT | 7:36 PM | 8:04 PM | 8:36 PM |
| Apr 15CDT | 7:52 PM | 8:21 PM | 8:52 PM |
| May 1CDT | 8:09 PM | 8:39 PM | 9:09 PM |
| May 15CDT | 8:24 PM | 8:56 PM | 9:24 PM |
| Jun 1CDT | 8:39 PM | 9:13 PM | 9:39 PM |
| Jun 15CDT | 8:47 PM | 9:21 PM | 9:47 PM |
| Jul 1CDT | 8:49 PM | 9:23 PM | 9:49 PM |
| Jul 15CDT | 8:44 PM | 9:17 PM | 9:44 PM |
| Aug 1CDT | 8:29 PM | 9:00 PM | 9:29 PM |
| Aug 15CDT | 8:11 PM | 8:41 PM | 9:11 PM |
| Sep 1CDT | 7:44 PM | 8:13 PM | 8:44 PM |
| Sep 15CDT | 7:21 PM | 7:48 PM | 8:21 PM |
| Oct 1CDT | 6:53 PM | 7:21 PM | 7:53 PM |
| Oct 15CDT | 6:30 PM | 6:58 PM | 7:30 PM |
Mornings at KGGI
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1CST | 5:43 AM | 6:14 AM | 6:43 AM |
| Nov 15CST | 6:00 AM | 6:30 AM | 7:00 AM |
| Dec 1CST | 6:19 AM | 6:48 AM | 7:19 AM |
| Dec 15CST | 6:31 AM | 7:00 AM | 7:31 AM |
| Jan 1CST | 6:38 AM | 7:07 AM | 7:38 AM |
| Jan 15CST | 6:36 AM | 7:05 AM | 7:36 AM |
| Feb 1CST | 6:23 AM | 6:54 AM | 7:23 AM |
| Feb 15CST | 6:07 AM | 6:38 AM | 7:07 AM |
| Mar 1CST | 5:46 AM | 6:18 AM | 6:46 AM |
| Mar 15CDT | 6:23 AM | 6:55 AM | 7:23 AM |
| Apr 1CDT | 5:54 AM | 6:26 AM | 6:54 AM |
| Apr 15CDT | 5:31 AM | 6:02 AM | 6:31 AM |
| May 1CDT | 5:08 AM | 5:37 AM | 6:08 AM |
| May 15CDT | 4:51 AM | 5:20 AM | 5:51 AM |
| Jun 1CDT | 4:39 AM | 5:06 AM | 5:39 AM |
| Jun 15CDT | 4:36 AM | 5:02 AM | 5:36 AM |
| Jul 1CDT | 4:40 AM | 5:06 AM | 5:40 AM |
| Jul 15CDT | 4:50 AM | 5:16 AM | 5:50 AM |
| Aug 1CDT | 5:05 AM | 5:34 AM | 6:05 AM |
| Aug 15CDT | 5:19 AM | 5:49 AM | 6:19 AM |
| Sep 1CDT | 5:37 AM | 6:08 AM | 6:37 AM |
| Sep 15CDT | 5:51 AM | 6:23 AM | 6:51 AM |
| Oct 1CDT | 6:08 AM | 6:40 AM | 7:08 AM |
| Oct 15CDT | 6:23 AM | 6:55 AM | 7:23 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
MIRL RWY 13/31 PRESET ON LOW INTST; TO INCR INTST & ACTVT PAPI & REIL RWYS 13 & 31- CTAF.
Runway 13/31
5,200 × 75 ft · Concrete
Frequencies
Night at KGGI, in short
When can I log night time at KGGI?
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 5:29 PM to 6:21 AM CST.
When do landings at KGGI 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 5:59 PM to 5:51 AM CST.
When are position lights required at KGGI?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 4:59 PM to 6:51 AM CST.
Nearby airports
- 8C2 Sully Municipal Sully, IA · 10 nm
- KTNU Newton Municipal-Earl Johnson Field Newton, IA · 13 nm
- 8C5 Toledo Municipal Toledo, IA · 19 nm
- KPEA Pella Municipal Pella, IA · 21 nm
- KTZT Belle Plaine Municipal Belle Plaine, IA · 23 nm
- KMIW Marshalltown Municipal Marshalltown, IA · 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.