These are based on the annual temperature cycle and the Gregorian calendar. Meteorologists break the year into four three-month groups to make record-keeping and forecasting more consistent. The Astronomical Calendar (The "Official" Dates)
As the Earth rotates on its axis, it also revolves around the Sun in an elliptical orbit, resulting in the changing patterns of sunlight that illuminate our planet. This celestial dance gives rise to the seasonal cycles, a phenomenon that has captivated human imagination and influenced the rhythms of life on Earth. The seasons, a symphony of climatic and environmental transformations, mark the passage of time and shape the world around us. when the seasons start and end