First Day Of Winter 2025 Uk. It marks the northern hemisphere’s shortest day (first day of winter) and southern hemisphere’s longest day (first day of summer). The winter solstice is the shortest day and longest night of the year after which the days begin to get longer and the nights get shorter.
The winter solstice marks the first day of winter and is the shortest day and longest night of the year, when the earth’s tilt brings it to either the northern or the southern. The seasons are defined as spring (march, april, may), summer (june, july, august), autumn (september, october, november) and winter (december, january, february).