BaZi · Day Master
The Ji day master (己, jǐ)
Ji is Yin Earth: a field, garden soil, ground that gets turned and planted.
Element: Earth · Polarity: Yin · Pinyin: jǐ · Read as: a field, garden soil, a pot
As a day master
A Ji day master is read as fertile, patient and quietly capable — it produces rather than displays, and it keeps a low profile about what it is growing.
What classically stands beside it
The classical line dries Ji with 丙 (Yang Fire, its Direct Resource) and turns it with 甲 (Yang Wood, its Direct Officer); wet earth is fertile and also heavy to work.
Where it sits in a chart
The Day Master is whatever stem the day pillar lands on; a chart can carry the same stem in the year, month or hour pillar, and that is then read as another character standing to the Day Master, not as a second day master.
Where this stem comes from
The day is counted in an unbroken sixty-day cycle, so the stem is not chosen — it is the one the cycle lands on. Enter a birth date and the chart prints it.
Questions
How is the day pillar computed?
Days are counted in a cycle of sixty, unbroken since the calendar began, so a given date always falls on the same stem and branch. Only the hour pillar needs the birth hour.
Does a Ji day master mean I am Earth?
It says the day stem is Earth; the chart counts all eight characters. The Day Master is the reference point, not the whole of the reading.
All ten Day Masters
Jia 甲 · Yi 乙 · Bing 丙 · Ding 丁 · Wu 戊 · Geng 庚 · Xin 辛 · Ren 壬 · Gui 癸
Cast your chart All ten Day Masters Luck Pillars (大运) — the ten-year blocks of a BaZi chart