Spring Equinox 2024 Time. Summer begins with the summer solstice, thursday, june 20, 2024, 4:51 p.m. It is also the point in the calendar where the day length is more or less equal to the.

On this date, the day is equal. Astronomical spring is measured by the vernal equinox, but that’s only a marker in the big flow of time, set up by man;