Spring Equinox 2025 Northern Hemisphere Time. When is the first day of spring in 2025 happening? Spring the exact moment of the summer solstice in 2025 is 20 june, at 21:42:02.

The march/vernal equinox is the moment when the. The spring equinox, also known as the vernal equinox or march equinox, marks the beginning of spring in the northern hemisphere.