Sunrise and sunset in Tanggu
The sun comes up at 6:39 am and goes down at 5:05 pm in Tanggu today, 10 h 26 min of daylight. Drag the sun across the sky to see where it will be at any minute. Another city.
Tanggu, Tianjin, China
Wednesday, November 4
1:27 am the sun is night, 58 degrees below the horizon
TANGGU 39.02 N 117.65 E DAY 10 H 26 MIN UTC+8
Today, hour by hour
- First light
- 5:08 am astronomical dawn
- Nautical dawn
- 5:40 am horizon becomes visible
- Dawn
- 6:11 am civil twilight begins
- Sunrise
- 6:39 am
- Golden hour
- 6:22 am to 7:17 am morning
- Solar noon
- 11:52 am sun 36 degrees up
- Golden hour
- 4:27 pm to 5:22 pm evening
- Sunset
- 5:05 pm
- Dusk
- 5:33 pm civil twilight ends
- Nautical dusk
- 6:05 pm
- Last light
- 6:36 pm astronomical dusk, full dark
- Day length
- 10 h 26 min −2 min 11 s vs yesterday
The next thirty days
| Day | Sunrise | Sunset | Day length | Change |
|---|---|---|---|---|
| Today | 6:39 am | 5:05 pm | 10 h 26 min | −2 min 11 s |
| Tomorrow | 6:40 am | 5:04 pm | 10 h 24 min | −2 min 10 s |
| Fri, Nov 6 | 6:41 am | 5:03 pm | 10 h 22 min | −2 min 09 s |
| Sat, Nov 7 | 6:42 am | 5:02 pm | 10 h 20 min | −2 min 07 s |
| Sun, Nov 8 | 6:44 am | 5:01 pm | 10 h 18 min | −2 min 06 s |
| Mon, Nov 9 | 6:45 am | 5:00 pm | 10 h 16 min | −2 min 04 s |
| Tue, Nov 10 | 6:46 am | 4:59 pm | 10 h 14 min | −2 min 03 s |
| Wed, Nov 11 | 6:47 am | 4:58 pm | 10 h 12 min | −2 min 01 s |
| Thu, Nov 12 | 6:48 am | 4:58 pm | 10 h 10 min | −1 min 59 s |
| Fri, Nov 13 | 6:49 am | 4:57 pm | 10 h 08 min | −1 min 58 s |
| Sat, Nov 14 | 6:50 am | 4:56 pm | 10 h 06 min | −1 min 56 s |
| Sun, Nov 15 | 6:51 am | 4:55 pm | 10 h 04 min | −1 min 54 s |
| Mon, Nov 16 | 6:52 am | 4:54 pm | 10 h 02 min | −1 min 52 s |
| Tue, Nov 17 | 6:54 am | 4:54 pm | 10 h 00 min | −1 min 50 s |
| Wed, Nov 18 | 6:55 am | 4:53 pm | 9 h 58 min | −1 min 48 s |
| Thu, Nov 19 | 6:56 am | 4:52 pm | 9 h 57 min | −1 min 46 s |
| Fri, Nov 20 | 6:57 am | 4:52 pm | 9 h 55 min | −1 min 43 s |
| Sat, Nov 21 | 6:58 am | 4:51 pm | 9 h 53 min | −1 min 41 s |
| Sun, Nov 22 | 6:59 am | 4:51 pm | 9 h 51 min | −1 min 39 s |
| Mon, Nov 23 | 7:00 am | 4:50 pm | 9 h 50 min | −1 min 36 s |
| Tue, Nov 24 | 7:01 am | 4:49 pm | 9 h 48 min | −1 min 34 s |
| Wed, Nov 25 | 7:02 am | 4:49 pm | 9 h 47 min | −1 min 31 s |
| Thu, Nov 26 | 7:03 am | 4:49 pm | 9 h 45 min | −1 min 29 s |
| Fri, Nov 27 | 7:04 am | 4:48 pm | 9 h 44 min | −1 min 26 s |
| Sat, Nov 28 | 7:05 am | 4:48 pm | 9 h 43 min | −1 min 23 s |
| Sun, Nov 29 | 7:06 am | 4:48 pm | 9 h 41 min | −1 min 20 s |
| Mon, Nov 30 | 7:07 am | 4:47 pm | 9 h 40 min | −1 min 17 s |
| Tue, Dec 1 | 7:08 am | 4:47 pm | 9 h 39 min | −1 min 14 s |
| Wed, Dec 2 | 7:09 am | 4:47 pm | 9 h 37 min | −1 min 11 s |
| Thu, Dec 3 | 7:10 am | 4:47 pm | 9 h 36 min | −1 min 08 s |
Reading the sky band
The band is one day in Tanggu, 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 Tanggu 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.
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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.