When Does Spring 2024 Begin. Astronomical spring begins on march 19, 2024 at 11:06 pm eastern daylight time, in the northern hemisphere,. But why does the day mark the start of spring and why only in the northern.
This year, the spring equinox falls on wednesday 20 march, and the astronomical spring lasts until the summer solstice. In the northern hemisphere, the astronomical start of spring is also known as the spring equinox.