Since which solar term did the day become longer than the night?

Usually in our northern hemisphere, it usually starts from the vernal equinox. The day will gradually be longer than the night, because the direct light from the sun will move northward at this time. In other words, the value of the sun point is a point that moves slowly from the equator to the tropic of cancer. At this time, in the northern hemisphere, it is summer. In summer, the days are generally longer than the nights. When it runs to the autumnal equinox, the night will be longer than the day, because the direct point of the sun is moving from the equator to the tropic of Capricorn.