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This is about 5 million kilometers closer than when we are at our furthest point (Aphelion) in early July. If We’re Closer, Why Is It Cold? during which month is the earth closest to the sun link
This orbital path was first mathematically mapped by the 17th-century astronomer Johannes Kepler. Kepler's First Law of Planetary Motion dictates that all planets move in ellipses, with the Sun positioned at one of the focal points. Because the Sun is offset from the dead center of this oval, the Earth draws nearer to it during one half of the year and swings further away during the other. To provide the direct keyword link you are
Would you like to know more about Earth's orbit or perihelion? Kepler's First Law of Planetary Motion dictates that
You can also search for "Earth perihelion date" on NASA's main site or any reputable astronomy education page for confirmation.
While it doesn’t flip the seasons, being closer to the sun does have measurable effects:
On a much longer astronomical timescale, the date of perihelion shifts due to a phenomenon called orbital precession. Gravitational tugs from other planets, particularly giants like Jupiter and Saturn, cause the entire ellipse of Earth's orbit to slowly rotate. Roughly 13,000 years from now, this slow drift will cause perihelion to occur in July instead of January, reversing the current dynamic.