Fatequery

fatequery calculates the chart before it writes the reading. BaZi and Zi Wei take a birth date, time, and place, and use the historical timezone of that place, daylight saving included. A match puts the two charts side by side. Liu Yao and Meihua skip the birth time and cast from the question you just wrote. The same details come back as the same chart. The reading stays with the palaces, Ten Gods, lines, or body and use already on the page. Ask again and those fields stay put.