First day of summer.
The astronomical summer began on June 21 this year, making it the first day of summer. The cosmic schedule decides the seasons because of the 23.5 levels of slant of the World's hub, in its circle around the Sun. On June 1, the meteorological summer begins. Each meteorological season lasts for three months. They are in sync with the Gregorian calendar, making it simpler to compare monthly and seasonal statistics for observing and forecasting.