Spring equinox and vernal equinox are the same thing.

Yes. They’re two names for the same astronomical event: the moment the sun crosses the celestial equator moving north, marking the start of spring in the Northern Hemisphere.

The word “vernal” just means “of spring” in Latin. So “spring equinox” and “vernal equinox” are synonyms. No difference in daylight hours — both refer to the same day when day and night are nearly equal (about 12 hours each) everywhere on Earth.

The confusion usually comes from marketing or astrology blogs trying to sound fancy. Don’t overthink it.