A birth hexagram from the date and a name hexagram from the name, mapped onto the King Wen sequence of 64.
The digit total is taken modulo 64 with 0 read as 64, the ordinary way a 1-based cycle closes.
WORTH KNOWING: this is a NUMEROLOGICAL MAPPING, not a cast reading. No coins or yarrow are thrown, so there are no changing lines and no relating hexagram. A reader expecting a cast will otherwise think half the answer is missing.
Request fields
Field
Type
Required
Notes
date_time
string (date-time)
optional
The moment to calculate for, ISO 8601. ALWAYS include an offset or a trailing Z - a value with no zone is read as Asia/Kolkata (UTC+05:30), not UTC, and can return the previous day's result with a 200. '2026-09-01T06:00:00Z' and '2026-09-01 06:00:00' are different instants and give different answers.