Official Start Of Winter 2024 Schrikkeljaar. The date on your calendar when winter begins is known as the winter solstice. The solstice marks the official start of winter and the gradual return of longer days, symbolizing renewal and hope in many cultures.
The 2024 winter solstice, the shortest day of the year, happens on saturday, dec. 20 and 23, depending on the year, but the 21st and 22nd are the most common.