The day pillar for Wednesday, 16 September 2026

Day pillar	癸巳 (gui si)
Heavenly stem	癸 (gui)
Earthly branch	巳 (si)
Day element	Water 水 (shui)
Polarity	Yin
Month pillar	丁酉 (ding you), governed by 白露 (bailu)

Today's day pillar is 癸巳 (gui si), a yin Water day in the sixty-day cycle. The month pillar is 丁酉 (ding you), governed by the term 白露 (bailu).

Water 水 (shui)

Water is the element of depth and movement, the phase where things are stored, dissolved and carried somewhere else.

水 is winter and the night hours. Its stems are 壬 (ren), the ocean, and 癸 (gui), the dew. Its branches are 亥 (hai) the pig and 子 (zi) the rat. Classically it is associated with intelligence, memory and adaptability, the capacity to take the shape of whatever holds it.

Metal generates Water and Water generates Wood, which closes the loop back to spring. Water controls Fire, the only relationship in the five that most people already have an intuition for. The cycle has no end and no top, which is the point of drawing it as a circle.

A Water day is one whose stem is 壬 or 癸. Water is also the element the sixty-day cycle ends on, since 癸亥 (gui hai) is day sixty, Water above and Water below.