Sunrise and sunset in Anseong

The sun comes up at 6:16 am and goes down at 6:31 pm in Anseong today, 12 h 15 min of daylight. Drag the sun across the sky to see where it will be at any minute. Another city.

Anseong, Gyeonggi-do, South Korea

Sunday, September 20

Sunrise6:16 am
Sunset6:31 pm

5:35 am the sun is nautical twilight, 9 degrees down

Drag the sun. Arrow keys move a minute, Shift for fifteen.

ANSEONG 37.01 N 127.27 E DAY 12 H 15 MIN UTC+9

Today, hour by hour

First light
4:49 am astronomical dawn
Nautical dawn
5:20 am horizon becomes visible
Dawn
5:50 am civil twilight begins
Sunrise
6:16 am
Golden hour
6:00 am to 6:51 am morning
Solar noon
12:24 pm sun 54 degrees up
Golden hour
5:57 pm to 6:47 pm evening
Sunset
6:31 pm
Dusk
6:57 pm civil twilight ends
Nautical dusk
7:27 pm
Last light
7:58 pm astronomical dusk, full dark
Day length
12 h 15 min −2 min 21 s vs yesterday

The next thirty days

DaySunriseSunsetDay lengthChange
Today6:16 am6:31 pm12 h 15 min−2 min 21 s
Tomorrow6:17 am6:30 pm12 h 13 min−2 min 21 s
Tue, Sep 226:18 am6:28 pm12 h 10 min−2 min 21 s
Wed, Sep 236:19 am6:27 pm12 h 08 min−2 min 21 s
Thu, Sep 246:20 am6:25 pm12 h 06 min−2 min 21 s
Fri, Sep 256:20 am6:24 pm12 h 03 min−2 min 21 s
Sat, Sep 266:21 am6:22 pm12 h 01 min−2 min 21 s
Sun, Sep 276:22 am6:20 pm11 h 58 min−2 min 21 s
Mon, Sep 286:23 am6:19 pm11 h 56 min−2 min 21 s
Tue, Sep 296:24 am6:17 pm11 h 54 min−2 min 21 s
Wed, Sep 306:25 am6:16 pm11 h 51 min−2 min 21 s
Thu, Oct 16:25 am6:14 pm11 h 49 min−2 min 20 s
Fri, Oct 26:26 am6:13 pm11 h 47 min−2 min 20 s
Sat, Oct 36:27 am6:11 pm11 h 44 min−2 min 20 s
Sun, Oct 46:28 am6:10 pm11 h 42 min−2 min 20 s
Mon, Oct 56:29 am6:09 pm11 h 40 min−2 min 20 s
Tue, Oct 66:30 am6:07 pm11 h 37 min−2 min 20 s
Wed, Oct 76:31 am6:06 pm11 h 35 min−2 min 19 s
Thu, Oct 86:31 am6:04 pm11 h 33 min−2 min 19 s
Fri, Oct 96:32 am6:03 pm11 h 30 min−2 min 19 s
Sat, Oct 106:33 am6:01 pm11 h 28 min−2 min 19 s
Sun, Oct 116:34 am6:00 pm11 h 26 min−2 min 18 s
Mon, Oct 126:35 am5:58 pm11 h 24 min−2 min 18 s
Tue, Oct 136:36 am5:57 pm11 h 21 min−2 min 18 s
Wed, Oct 146:37 am5:56 pm11 h 19 min−2 min 17 s
Thu, Oct 156:38 am5:54 pm11 h 17 min−2 min 17 s
Fri, Oct 166:39 am5:53 pm11 h 14 min−2 min 16 s
Sat, Oct 176:39 am5:52 pm11 h 12 min−2 min 16 s
Sun, Oct 186:40 am5:50 pm11 h 10 min−2 min 16 s
Mon, Oct 196:41 am5:49 pm11 h 08 min−2 min 15 s

Reading the sky band

The band is one day in Anseong, midnight to midnight, in its own local time. The curve is the sun's height: above the line it is up, below it is not. The dark bands are the three twilights and night; the lighter stripe either side of sunrise and sunset is the golden hour, and the thin cool stripe after it is the blue hour. Drag the sun to any minute and the readout says how high it is and which way to look.

Dawn, sunrise, dusk and the three twilights

Sunrise and sunset are when the top edge of the sun meets a flat horizon, with refraction bending the light so it shows up a little early and lingers a little late (the sun's centre is 0.833 degrees below the horizon at that moment). Civil twilight is the sun within 6 degrees below: bright enough to work outside without lights. Nautical twilight runs to 12 degrees, when sailors could still see the horizon to shoot a star. Astronomical twilight runs to 18 degrees; after that the sky is as dark as it gets.

Why the times drift

Day length in Anseong changes fastest around the equinoxes in March and September and stalls at the solstices in June and December. The change column in the table is today against yesterday, so you can watch the evenings draw in or stretch out. Hills, buildings and haze at your actual horizon shift the real moment by a minute or several; these are the times for a flat, clear horizon at sea level.

Near Anseong

What stays here

Everything on this page is arithmetic on a latitude, a longitude and the clock, done once at the edge so the numbers are in the page before any script runs, and again in your browser as you drag the sun. No account, no cookies, nothing typed here is stored. The only thing this page records is that a city was looked up, and which one.