Three Harmony · 三合
What Is Three Harmony? The Water, Wood, Fire, and Metal Groups
Understand the four Chinese Three Harmony groups, how birth Year, Month, Day, and Hour branches are checked, and the difference between complete and partial connections.
What is Three Harmony?
Three Harmony, or 三合 (San He), is a Chinese astrology topic concerning sets of three Earthly Branches that gather toward one elemental direction.
The mongkol.io calculator derives the branches from birth Year, Month, Day, and Hour, then reports a complete three-branch group, a two-branch partial connection, or no matching connection.
What are the four Three Harmony groups?
申–子–辰 gathers toward Water, 亥–卯–未 toward Wood, 寅–午–戌 toward Fire, and 巳–酉–丑 toward Metal. Earth does not have a separate Three Harmony frame.
In plain-language interpretation, Water is associated with information, movement, and strategy; Wood with growth and connection; Fire with expression and momentum; and Metal with standards, decisions, and systems.
How is Three Harmony different from BaZi?
BaZi is a broad Four Pillars reading covering the Day Master, Five Elements, positional relationships, and life cycles. This Three Harmony feature checks only the specified three-branch relationship.
Both features can derive branches from the same birth date, time, and place, so they share a consistent birth-details form while remaining separate topics and separate result pages.
Does a complete group prove elemental transformation?
All three branches confirm that the structural Three Harmony group is present, but do not automatically prove full elemental transformation. Season, visible Heavenly Stems, and supporting or disruptive relationships still matter, with schools applying different thresholds.
When only two branches appear, the calculator labels the connection as partial and identifies the missing branch without calling it complete or transformed.
Frequently Asked Questions
What information does Three Harmony need?
It uses birth date, time, and place to calculate the Year, Month, Day, and Hour branches. A name is not part of the calculation.
Can I calculate it without a birth time?
Partly. The Year, Month, and Day remain available, but the Hour branch is omitted. A missing third branch could appear there and change the result.
Are Three Harmony and BaZi the same?
No. BaZi is a broad Four Pillars reading, while Three Harmony is a focused three-branch relationship topic. They can share birth data while keeping separate results.