Last Day Of Summer 2025 Usa Schedule. The season change dates are based on the spring and fall equinoxes as well as the summer and winter solstices. Time tickets for summer and fall:
The reason for the leap year is to reconcile the earth’s orbit. Summer 2025 starts on thursday, june 20th in the northern hemisphere, with the first day of summer being the longest daylight day of the year with the earth’s axis having reached its.