After Lichun: the Bazi year changes

This is the other half of a controlled pair. The previous case sits before Lichun; this one sits two days after it, with everything else held constant. Reading the two side by side is the fastest way to see that the year boundary is a solar-term event rather than a calendar-page event.

What changes is not only the Year Pillar. The Month Pillar moves as well, from Ji-Chou to Geng-Yin, because Lichun is also the start of the first solar month. One boundary, two pillars. That is why a person born a few days either side of Lichun can end up with a chart that looks structurally different from a sibling born in the same week.

The practical consequence is that a birth date alone cannot settle your chart if you are near this boundary. You need the clock time, and you need it checked against the solar-term timestamp rather than rounded to the nearest day. This page shows exactly what the engine does with a clean post-boundary input so you have a reference point.

It is also worth noting what a paired case like this cannot establish. These two records are two days apart, so they show which side of the boundary each input occupies but not the boundary's exact minute. They do not validate the engine against an independent ephemeris. The suite as a whole is a consistency check on stated rules, not an external proof that those rules match every other published source.