LogNight

41D Michigan night times

White Lake, MI · Seaplane base

Night of Nov 6 to Nov 7EST

Position lights

§ 91.209

5:20 PMto7:15 AM

Sunset to sunrise. Lights on.

2220Z to 1215Z

Night logging

§ 1.1

5:50 PMto6:46 AM

Civil twilight. Log it as night.

2250Z to 1146Z

Night currency

§ 61.57(b)

6:20 PMto6:15 AM

One hour after sunset. Landings count.

2320Z to 1115Z

Other dates, moon, and night hours

Evenings at 41D

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

Date SunsetLights onCivil twilight endsLog night1 hr after sunsetLandings count
Nov 1EST 5:26 PM5:56 PM6:26 PM
Nov 15EST 5:11 PM5:41 PM6:11 PM
Dec 1EST 5:01 PM5:33 PM6:01 PM
Dec 15EST 5:01 PM5:33 PM6:01 PM
Jan 1EST 5:11 PM5:43 PM6:11 PM
Jan 15EST 5:25 PM5:57 PM6:25 PM
Feb 1EST 5:47 PM6:17 PM6:47 PM
Feb 15EST 6:05 PM6:34 PM7:05 PM
Mar 1EST 6:23 PM6:52 PM7:23 PM
Mar 15EDT 7:40 PM8:08 PM8:40 PM
Apr 1EDT 8:00 PM8:28 PM9:00 PM
Apr 15EDT 8:16 PM8:45 PM9:16 PM
May 1EDT 8:34 PM9:05 PM9:34 PM
May 15EDT 8:49 PM9:22 PM9:49 PM
Jun 1EDT 9:05 PM9:39 PM10:05 PM
Jun 15EDT 9:14 PM9:49 PM10:14 PM
Jul 1EDT 9:16 PM9:50 PM10:16 PM
Jul 15EDT 9:10 PM9:44 PM10:10 PM
Aug 1EDT 8:54 PM9:26 PM9:54 PM
Aug 15EDT 8:36 PM9:06 PM9:36 PM
Sep 1EDT 8:08 PM8:37 PM9:08 PM
Sep 15EDT 7:44 PM8:12 PM8:44 PM
Oct 1EDT 7:15 PM7:44 PM8:15 PM
Oct 15EDT 6:52 PM7:20 PM7:52 PM

Mornings at 41D

When each night ends. Local time.

Date 1 hr before sunriseLandings stop countingCivil twilight beginsNight logging endsSunriseLights off
Nov 1EST 6:08 AM6:38 AM7:08 AM
Nov 15EST 6:26 AM6:55 AM7:26 AM
Dec 1EST 6:44 AM7:13 AM7:44 AM
Dec 15EST 6:57 AM7:25 AM7:57 AM
Jan 1EST 7:04 AM7:32 AM8:04 AM
Jan 15EST 7:01 AM7:30 AM8:01 AM
Feb 1EST 6:48 AM7:18 AM7:48 AM
Feb 15EST 6:31 AM7:02 AM7:31 AM
Mar 1EST 6:10 AM6:41 AM7:10 AM
Mar 15EDT 6:46 AM7:18 AM7:46 AM
Apr 1EDT 6:16 AM6:48 AM7:16 AM
Apr 15EDT 5:53 AM6:23 AM6:53 AM
May 1EDT 5:29 AM5:58 AM6:29 AM
May 15EDT 5:12 AM5:39 AM6:12 AM
Jun 1EDT 4:59 AM5:25 AM5:59 AM
Jun 15EDT 4:55 AM5:20 AM5:55 AM
Jul 1EDT 5:00 AM5:25 AM6:00 AM
Jul 15EDT 5:09 AM5:35 AM6:09 AM
Aug 1EDT 5:25 AM5:53 AM6:25 AM
Aug 15EDT 5:40 AM6:10 AM6:40 AM
Sep 1EDT 5:59 AM6:29 AM6:59 AM
Sep 15EDT 6:13 AM6:45 AM7:13 AM
Oct 1EDT 6:31 AM7:03 AM7:31 AM
Oct 15EDT 6:47 AM7:18 AM7:47 AM

Lights and runways

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

Field elevation 980 ft MSL
Airport lights Not listed
Beacon Not listed
Wind indicator Not listed

Runway 09W/27W

2,006 × 200 ft · Water

Edge lights Not listed
09W None listed
27W None listed

Runway 12W/30W

3,688 × 200 ft · Water

Edge lights Not listed
12W None listed
30W None listed

Runway 13W/31W

2,618 × 200 ft · Water

Edge lights Not listed
13W None listed
31W None listed

Runway 14W/32W

4,530 × 200 ft · Water

Edge lights Not listed
14W None listed
32W None listed

Runway 18W/36W

3,515 × 200 ft · Water

Edge lights Not listed
18W None listed
36W None listed

Frequencies

CTAF 120.5

Night at 41D, in short

When can I log night time at 41D?

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 5:50 PM to 6:46 AM EST.

When do landings at 41D 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 6:20 PM to 6:15 AM EST.

When are position lights required at 41D?

From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 5:20 PM to 7:15 AM EST.

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.