That's because it's winter solstice, a day on which most of the USA clocks fewer than 10 hours of daylight, reports the Washington Post. For Jews, the winter solstice is called "Tekufat Tevet", which marks the start of winter. On the solstice, the sun is set to rise at 8:09 a.m. local time at Stonehenge, and by then the visitors to the monument will be at the giant circle of mysterious stones.
Google Doodle Friday celebrated the first day of winter and the longest night of the year for the Northern Hemisphere-an astronomical phenomenon also known as the Winter Solstice or midwinter.
Why it happens: "Because the Earth is tilted on its rotational axis, we experience seasons here on Earth".
But this year's winter solstice is a bit different - as there will also be a full moon and a meteor shower on Friday night.
The cold moon-what a full moon is called this time of year-will also be visible around the same time and peaking around mid-day on December 22, Quartz reported.
There's also a meteor shower.
For those who want to celebrate, there are a number of events in Seattle.
There are countless cultures that have recognized the winter solstice.
In clear conditions, light from the rising sun lights up the inner chamber of the 5,000-year-old tomb.
The moon will help enliven the long night, and, as the US National Weather Service points out, we can now look forward to daylight increasing for the next six months.
Winter Solstice in China is referred to as the Dongzhi Festival.