ChenJing BaZi puts the time arithmetic in front of you before it draws a chart. You enter a birth date on the solar or lunar calendar, the clock time recorded at birth, and the birth city chosen from a worldwide country, region and city list. The site then identifies the coordinates and the time zone that city actually used that year, applies the daylight-saving history, and compares the resulting instant against the solar-term boundary to fix the year and month pillars. Local civil time is the default; true solar time is applied only if you switch to it, and the correction in minutes is displayed.
The free chart lists the four pillars, the hidden stems inside each branch, the Ten God of each stem and hidden stem, Na Yin elements, the Five Element picture and the ten-year luck cycles, along with a short reading across seven areas. Topic entries then re-read that same chart for career, resources, relationships and the current year without changing the pillars themselves.
The site is unusually explicit about its limits. If the birth hour is unknown it shows the year, month and day pillars and leaves the hour pillar and anything depending on it blank rather than defaulting to noon; if the birthday falls on a solar-term boundary it lists the candidates on either side. When daylight saving makes a local time nonexistent or repeated, it asks you to confirm which occurrence rather than guessing. A methodology page explains why two sites can produce different pillars, naming historical time zones, daylight saving, true solar time, the Zi-hour day boundary, solar-term timestamps and luck-cycle start rules as the usual causes.
Beyond the calculator, a Liu Yao page has you record six manual three-coin throws and builds a Najia chart with the primary hexagram, moving lines, relating hexagram, palace, subject and object lines, six relatives, six spirits and the month and day facts. A compatibility page casts two charts separately and reads the day masters, spouse palaces and Five Element flow together. The tools directory also lists Zi Wei Dou Shu, a daily almanac reading, Qimen and a date-selection almanac.
The optional BaZi reading costs US$9.90 as a single payment with no subscription and no automatic renewal. It reuses the free chart and expands into eight chapters covering character, career, wealth, relationships, wellbeing rhythm and luck cycles. The report is generated automatically and includes no human review or live consultation. No account or password is needed; the viewing link and the PDF are kept for seven days from generation, so the file has to be saved before it expires. A full sample chapter built on a fictional case is published so the writing and depth can be read before buying.
Free chart input and results are held only in the current browser tab for about two hours, and the site keeps no personal chart history. Readings are presented for cultural reference and self-reflection, not for medical, legal, financial or gambling decisions, and the tools require users to be 18 or over.
