Spring Equinox 2025 Pst Time. The page on variation in times of perihelion and aphelion. The march equinox marks the beginning of spring in the northern hemisphere and the first day of fall in the southern hemisphere.
Here are the equinox and solstice dates—plus, answers to common questions about the seasons of. Therefore, the equinox in march is referred to as the spring equinox even though fall is happening in the southern hemisphere.