LogNight

KGGW Wokal Field/Glasgow-Valley County night times

Glasgow, MT · FAA GGW

Night of Nov 6 to Nov 7MST

Position lights

§ 91.209

4:40 PMto7:02 AM

Sunset to sunrise. Lights on.

2340Z to 1402Z

Night logging

§ 1.1

5:13 PMto6:28 AM

Civil twilight. Log it as night.

0013Z to 1328Z

Night currency

§ 61.57(b)

5:40 PMto6:02 AM

One hour after sunset. Landings count.

0040Z to 1302Z

Other dates, moon, and night hours

Evenings at KGGW

When each night begins, through the year. Local time.

Date SunsetLights onCivil twilight endsLog night1 hr after sunsetLandings count
Nov 1MST 4:47 PM5:20 PM5:47 PM
Nov 15MST 4:28 PM5:02 PM5:28 PM
Dec 1MST 4:15 PM4:50 PM5:15 PM
Dec 15MST 4:13 PM4:49 PM5:13 PM
Jan 1MST 4:23 PM4:59 PM5:23 PM
Jan 15MST 4:40 PM5:15 PM5:40 PM
Feb 1MST 5:06 PM5:39 PM6:06 PM
Feb 15MST 5:28 PM6:01 PM6:28 PM
Mar 1MST 5:51 PM6:22 PM6:51 PM
Mar 15MDT 7:12 PM7:43 PM8:12 PM
Apr 1MDT 7:37 PM8:08 PM8:37 PM
Apr 15MDT 7:57 PM8:30 PM8:57 PM
May 1MDT 8:20 PM8:55 PM9:20 PM
May 15MDT 8:39 PM9:17 PM9:39 PM
Jun 1MDT 8:59 PM9:39 PM9:59 PM
Jun 15MDT 9:09 PM9:50 PM10:09 PM
Jul 1MDT 9:10 PM9:52 PM10:10 PM
Jul 15MDT 9:03 PM9:42 PM10:03 PM
Aug 1MDT 8:43 PM9:19 PM9:43 PM
Aug 15MDT 8:20 PM8:55 PM9:20 PM
Sep 1MDT 7:48 PM8:20 PM8:48 PM
Sep 15MDT 7:19 PM7:50 PM8:19 PM
Oct 1MDT 6:46 PM7:17 PM7:46 PM
Oct 15MDT 6:18 PM6:49 PM7:18 PM

Mornings at KGGW

When each night ends. Local time.

Date 1 hr before sunriseLandings stop countingCivil twilight beginsNight logging endsSunriseLights off
Nov 1MST 5:52 AM6:20 AM6:52 AM
Nov 15MST 6:14 AM6:40 AM7:14 AM
Dec 1MST 6:36 AM7:01 AM7:36 AM
Dec 15MST 6:51 AM7:14 AM7:51 AM
Jan 1MST 6:57 AM7:21 AM7:57 AM
Jan 15MST 6:52 AM7:17 AM7:52 AM
Feb 1MST 6:35 AM7:01 AM7:35 AM
Feb 15MST 6:13 AM6:41 AM7:13 AM
Mar 1MST 5:48 AM6:17 AM6:48 AM
Mar 15MDT 6:20 AM6:49 AM7:20 AM
Apr 1MDT 5:45 AM6:13 AM6:45 AM
Apr 15MDT 5:17 AM5:44 AM6:17 AM
May 1MDT 4:48 AM5:13 AM5:48 AM
May 15MDT 4:27 AM4:50 AM5:27 AM
Jun 1MDT 4:10 AM4:30 AM5:10 AM
Jun 15MDT 4:05 AM4:24 AM5:05 AM
Jul 1MDT 4:10 AM4:29 AM5:10 AM
Jul 15MDT 4:22 AM4:42 AM5:22 AM
Aug 1MDT 4:42 AM5:05 AM5:42 AM
Aug 15MDT 5:01 AM5:26 AM6:01 AM
Sep 1MDT 5:24 AM5:52 AM6:24 AM
Sep 15MDT 5:43 AM6:12 AM6:43 AM
Oct 1MDT 6:06 AM6:35 AM7:06 AM
Oct 15MDT 6:26 AM6:54 AM7:26 AM

Lights and runways

As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.

Field elevation 2,296 ft MSL
Airport lights See remarks below
Beacon White and green, sunset to sunrise
Wind indicator Lighted

ACTVT REIL RWY 8, 12, 26, & 30; MIRL RWY 08/26 & 12/30 - CTAF. PAPI RWY 08, 12, 26, & 30 OPR CONSLY.

Runway 08/26

5,000 × 75 ft · Asphalt

Edge lights Medium intensity (MIRL)
08 2-light PAPI, left · REIL
26 2-light PAPI, left · REIL

Runway 12/30

5,002 × 100 ft · Asphalt

Edge lights Medium intensity (MIRL)
12 4-light PAPI, left · REIL
30 4-light PAPI, left · REIL

Frequencies

CTAF 122.8
UNICOM 122.8
ASOS 135.175

Night at KGGW, in short

When can I log night time at KGGW?

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 5:13 PM to 6:28 AM MST.

When do landings at KGGW 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 5:40 PM to 6:02 AM MST.

When are position lights required at KGGW?

From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 4:40 PM to 7:02 AM MST.

Nearby airports

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.