Calculation issue
Include the entered date, time, city, calendar mode, true-solar-time setting, and day-boundary rule. Do not send private details you are not comfortable sharing.
Contact and corrections
Help us make the chart clearer and more accurate
BaZi Calculator is created by Deerflow. Product questions, correction requests, and privacy enquiries can be sent by email, through our official X profile, or through Deerflow's published contact channel.
Content correction
Send the page URL, the passage that needs review, and a reliable source when possible. We distinguish factual corrections from differences between interpretive schools.
Privacy question
Describe the browser, page, and action involved. Birth details used by the calculator stay in the browser and are not submitted to our server for calculation.
Before reporting a chart difference
Compare the timezone, solar-time setting, lunar/solar calendar selection, and 23:00 versus midnight day boundary. These policy choices explain many differences between calculators.