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MingScroll
Free BaZi calculator — transparent true solar time
3 followers
Free BaZi calculator — transparent true solar time
3 followers
Free Four Pillars (BaZi) calculator: clock, mean & true solar time, solar terms to the minute, and decade luck. Choose the early Rat hour rule. How We Calculate + lunar-javascript cross-check on pillars. Entertainment & self-reflection only.



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Hi PH — I’m Yuanji. MingScroll is a free BaZi (Four Pillars) calculator I built because most online charts hide which civil time they used.
Near solar-term boundaries, a few minutes can change the month or year pillar. MingScroll shows clock time, mean solar time, and true solar time, and documents solar terms to the minute. You can choose the early Rat hour (子时) rule some schools disagree on. Methodology is on How We Calculate; we cross-check pillars with lunar-javascript (tyme4ts is the source of truth — for late Rat hour 23:00–23:59 the day pillar can differ from some other libraries). Decade luck is included.
There’s also a free Chinese name generator on the same site if that’s useful alongside the chart.
For entertainment and self-reflection only — not medical, legal, or financial advice.
Site: https://mingscroll.com
Happy to answer methodology questions.