Spring Equinox 2025
Spring Equinox 2025. Equinox means equal day and night (12 hours each). The spring equinox, also known as the vernal equinox, is one of the four solar festivals of the year.
The 2025 march equinox falls march 20 at 9:01 utc. In the northern hemisphere, the astronomical start of spring, also known as the spring equinox, will occur on thursday, march 20, at 5:01 am edt in 2025.