When Does Spring Start 2024 Time. Eastern time tuesday, when the sun will be moving directly over the earth’s equator — the central line between the north. The first day of spring 2024 is on tuesday, march 19, when the earth's axis and orbit line up for an equal amount of day and night.
Begins on friday, december 1, and will end on wednesday, february 29, 2024. Learn how the seasons are defined by astronomical and meteorological start dates, and why they vary over time.