Sunrise and sunset in Vacaville

The sun comes up at 6:53 am and goes down at 7:09 pm in Vacaville today, 12 h 16 min of daylight. Drag the sun across the sky to see where it will be at any minute. Another city.

Vacaville, California, United States

Saturday, September 19

Sunrise6:53 am
Sunset7:09 pm

5:01 pm the sun is 24 degrees up in the west-southwest

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

VACAVILLE 38.36 N 121.99 W DAY 12 H 16 MIN UTC-7

Today, hour by hour

First light
5:24 am astronomical dawn
Nautical dawn
5:55 am horizon becomes visible
Dawn
6:26 am civil twilight begins
Sunrise
6:53 am
Golden hour
6:37 am to 7:28 am morning
Solar noon
1:01 pm sun 53 degrees up
Golden hour
6:34 pm to 7:25 pm evening
Sunset
7:09 pm
Dusk
7:35 pm civil twilight ends
Nautical dusk
8:06 pm
Last light
8:38 pm astronomical dusk, full dark
Day length
12 h 16 min −2 min 27 s vs yesterday

The next thirty days

DaySunriseSunsetDay lengthChange
Today6:53 am7:09 pm12 h 16 min−2 min 27 s
Tomorrow6:54 am7:07 pm12 h 14 min−2 min 28 s
Mon, Sep 216:55 am7:06 pm12 h 11 min−2 min 28 s
Tue, Sep 226:55 am7:04 pm12 h 09 min−2 min 28 s
Wed, Sep 236:56 am7:03 pm12 h 06 min−2 min 28 s
Thu, Sep 246:57 am7:01 pm12 h 04 min−2 min 28 s
Fri, Sep 256:58 am6:59 pm12 h 01 min−2 min 28 s
Sat, Sep 266:59 am6:58 pm11 h 59 min−2 min 28 s
Sun, Sep 277:00 am6:56 pm11 h 56 min−2 min 28 s
Mon, Sep 287:01 am6:55 pm11 h 54 min−2 min 28 s
Tue, Sep 297:02 am6:53 pm11 h 52 min−2 min 28 s
Wed, Sep 307:03 am6:52 pm11 h 49 min−2 min 27 s
Thu, Oct 17:03 am6:50 pm11 h 47 min−2 min 27 s
Fri, Oct 27:04 am6:48 pm11 h 44 min−2 min 27 s
Sat, Oct 37:05 am6:47 pm11 h 42 min−2 min 27 s
Sun, Oct 47:06 am6:45 pm11 h 39 min−2 min 27 s
Mon, Oct 57:07 am6:44 pm11 h 37 min−2 min 27 s
Tue, Oct 67:08 am6:42 pm11 h 34 min−2 min 27 s
Wed, Oct 77:09 am6:41 pm11 h 32 min−2 min 26 s
Thu, Oct 87:10 am6:39 pm11 h 29 min−2 min 26 s
Fri, Oct 97:11 am6:38 pm11 h 27 min−2 min 26 s
Sat, Oct 107:12 am6:36 pm11 h 25 min−2 min 25 s
Sun, Oct 117:13 am6:35 pm11 h 22 min−2 min 25 s
Mon, Oct 127:14 am6:33 pm11 h 20 min−2 min 25 s
Tue, Oct 137:15 am6:32 pm11 h 17 min−2 min 24 s
Wed, Oct 147:16 am6:31 pm11 h 15 min−2 min 24 s
Thu, Oct 157:17 am6:29 pm11 h 13 min−2 min 24 s
Fri, Oct 167:18 am6:28 pm11 h 10 min−2 min 23 s
Sat, Oct 177:19 am6:26 pm11 h 08 min−2 min 23 s
Sun, Oct 187:19 am6:25 pm11 h 05 min−2 min 22 s

Reading the sky band

The band is one day in Vacaville, 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 Vacaville 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 Vacaville

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.