On December 21, the shortest day and the longest night will occur
Today, December 21, marks the winter solstice—the shortest day and the longest night of the year. On this day, the sun reaches its lowest position in the sky, which is caused by the Earth’s tilt and the specifics of its orbit.
Starting tomorrow, the length of daylight will gradually increase by an average of one minute per day. This process will continue until June 21, when the summer solstice occurs, marking the longest day of the year.
Solstices are significant scientific events that reflect Earth’s climatic and biological rhythms. The gradual increase in sunlight affects ecosystems by stimulating the activity of living organisms and influencing humans’ biological clocks.