Jungkook's (BTS) BaZi — What Stays Fixed, What Splits
BTS member Jungkook (Jeon Jeong-guk) has a publicly listed birth date of September 1, 1997, on Wikidata (Q22338877). Running this date through the KLifeMap engine gives — year pillar Ding-Chou (丁丑), month pillar Wu-Shen (戊申), day pillar Bing-Wu (丙午).
No hour pillar — so we read three pillars only
The public record has no birth time. The hour pillar needs a time to build, so we leave it blank and judge only from the year, month, and day pillars. We do not fill the hour in with noon.
What doesn't move — body strength and the useful element are both fixed
The day master (the heavenly stem of the birth day) is Bing (丙, Yang Fire), and the birth month is Shen (申), autumn. Running all twelve possible hour branches through the engine (with the date held fixed), body strength comes back weak (身弱) in all twelve cases, and the useful element (用神) comes back Wood (木) in all twelve cases. Both can be stated with confidence even without knowing the birth time.
This is the same pattern as Karina's (aespa) chart, covered separately — body strength and useful element both fixed regardless of time, with only the pattern (格) splitting by hour. By contrast, for IU only the useful element was fixed while body strength changed with the hour. Which values stay fixed and which split depends on the combination of birth season and day master, and can only be known by actually running all twelve cases each time.
What splits with time — the pattern (格)
The pattern splits five ways depending on the hour branch. Running all twelve hour branches: Eating God pattern (食神格) in 8 cases, Wealth pattern (正財格ㆍ偏財格), Seven Killings pattern (偏官格), and Direct Officer pattern (正官格) in 1 case each. Even the most common outcome, Eating God pattern, only holds in 8 of 12 cases — without a known birth time, it cannot be stated as a single certainty.
What we don't do
This piece does not make claims about personality or life direction. It only separates, as-is, what the KLifeMap engine determines for this date regardless of time (the year/month/day pillars, body strength, useful element) from what changes with time (the pattern).
You can run your own birth date through the full reading at KLifeMap BaZi Analysis. The same input always gives the same result.
Source — birth date: Wikidata Q22338877 (CC0). Pattern/useful-element principles: Zi Ping Zhen Quan (子平真詮). Judgment engine: KLifeMap sajuEngine.