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Chicago Will Cross Paths With its First Sunset Before 7 pm Friday – NBC Chicago

Chicagoans, love it or hate it, you’re going to have to face it: The sun will be long gone before you know it, as the days are officially getting shorter — and shorter.

Hints of fall are already in the air in the Chicago area, but one key indicator of the season changing is the fact that the sun is setting earlier with each passing day.

The city will stumble across a key milestone in that process Friday, as the sun will set at 6:58 pm, according to the NBC 5 Storm Team.

At this point in the year, the city is losing nearly three minutes of daylight every single day. Thursday marked the final time in 2022 that the sun will set after 7 pm, according to Sunrise-Sunset.

The city first crossed that threshold St. Patrick’s Day in March, but after six months of luxuriously-long daylight hours, the season’s change means that darkness will arrive sooner and sooner for the rest of the year.

In fact, by the end of September, sunset will occur just after 6:30 pm, and beginning Sept. 27, there will be fewer than 12 hours of daylight per day.

The reason the autumnal equinox, which will fall Sept. 22, will feature slightly more daylight than nighttime hours is because of a variety of factors, most significantly the refraction of sunlight by the Earth’s atmosphere. That causes light to linger for several minutes after the sun sets below the horizon, and therefore leads to more than 12 hours of daylight on the equinox.

october 23 will mark the first time that the sun will set before 6 pm, and the sunset will continue occurring earlier and earlier until Dec. 9, when it will go down at 4:21 pm Daylight saving time will end on Nov. 6, drawing sunset times earlier by an entire hour.

After that, the days will continue to get shorter due to later sunrises, but the sun will technically begin to stay out just a little bit later each day, giving the area its first steps toward the spring of 2023.

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