Although they sound confusing, these are just terms for how low the Sun is beneath the horizon, which indicates how dark it is. Finally, we have astronomical twilight , which is the last stage before nighttime. This is what many people consider dark.
So, as you can see, it is not quite as straightforward as you may think. The day of the year will have a massive effect on the day length too, and this will change the time that it actually gets dark in your city.
However, on average it takes around 70 minutes for it to get fully dark after sunset. In some states, it may take a little longer than this for it to get truly dark. This is going to be the case for people located in the United States and in the majority of Europe too. However, this can differ a lot as you move closer or further away from the equator. This place is well known for its unique day length, which is probably like nothing most of us have ever experienced before.
Through November to January, the Sun never comes completely above the horizon. You can see clearly that it takes a lot less time to get dark at the equator than it does even in Key West. As we move northwards, away from the equator, that time gets longer still. At the equator, in Quito, nautical twilight starts only 20 minutes after sunset, compared with 23 minutes in Key West, 26 minutes in Kansas City, and 44 minutes in Anchorage. In Quito, it only takes just over an hour 68 minutes to get dark after sunset at the spring equinox.
Move north from there and it takes 76 minutes in Key West, 90 minutes in Kansas City and almost 2 and a half hours up in Anchorage. Whatever your location, though, it takes slightly longer to get dark the closer to summer we are.
The difference is small, being only a few minutes for mainland USA. Take Alaska, for example. Which means it never gets past civil twilight, so you can read outside all night without an extra source of light!
You probably know that the north pole has 24hr daylight in summer, but come down to the contiguous states and the summer impact is not as marked. In summary, for the 48 contiguous states, it takes anywhere from 70 to minutes for it to get dark after sunset. If you live at the northern border with Canada, you will experience nights in mid-June where it never gets truly dark at all. When will it be dark?
So, if you want to discover more about how long it takes to get dark after the sun sets, then read on… What is Astronomical Twilight? Towards the end of this period, car headlamps need to be switched on and streetlamps will be lit. At the Arctic Circle, it's dark, with a long period of no sunrise. At the Antarctic Circle, it's bright, with a long period of no sunset.
Times vary with the seasons and the times of sunset, but generally lighthouse lights come on at sunset, and before it is dark. Sabbath is observed from sunset on Friday night until sunset on Saturday night. That it's dark and that it occurs between sunset and sunrise. Shabbat is from sunset on Friday to sunset on Saturday, every week. Generally, if it is dark outside and it gets lighter, the Sun is rising. If it's bright outside and then it gets dark, that was sunset.
Officially, "sunrise" is when the upper limb of the Sun comes into view on the horizon, and "sunset" is when the upper limb of the Sun disappears behind the horizon. Log in. See Answer. Best Answer. In reality, that varies by location, terrain and weather, and in the eyesight of the observer.
Study guides. Q: How long after sunset until it is dark? Write your answer Related questions. How long after sunset until dark in CT tonight? How long do Jews celebrate Shabbat for? How long after sunset does it get dark in Utah? How long after sunset is it dark in London?
What is the duration of Dark Sunset? When was Dark Sunset created?
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