равноде́нствие

This moment marks the point when our friends in the northern hemisphere experience the vernal or northward equinox when the apparent motion of the Sun crosses from the celestial southern hemisphere on its March towards the Tropic of Cancer. After this transition, for those for whom this day signals the start of Spring, the daylight hours gradually start getting longer.
At extreme climes (high latitudes) during the equinoctial day, the Sun is seen to move along the horizon, marauding at dawn and dusk and extending twilight to a couple of hours in duration. Idiomatically, the card means that the new season is just around the corner—literally in Russian, on the tip of one’s nose.