Case 25 of 26
Luck direction and nearby Jie
Near Jie: two hours before Jingzhe
A short interval to the next Jie produces a near-immediate start receipt.
Boundary question
Does the start calculation preserve the exact nearby Jie and interval direction?
The corrected time is shortly before Jingzhe, so forward sequence references Jingzhe and starts on March 16, 2026 rather than years later.
Synthetic input
Recorded facts
- Date
- 2026-03-05
- Recorded time
- 20:00
- Location
- 120°E reference meridian
- Time zone
- Asia/Shanghai
- Longitude
- 120.0000°
- Gender input
- Male
Pinned expected facts
Verified output
Year
丙午
Month
庚寅
Day
戊寅
Hour
壬戌
- Day Master
- 戊
- True solar time
- 2026-03-05 19:47
- Total correction
- -12.06 minutes
- Historical offset
- UTC+08:00 · DST 0 min
- Luck direction
- 顺排
- Reference Jie
- 惊蛰 · 2026-03-05 21:59:00
- Luck start
- 2026-03-16 17:55:56
Reading the boundary
What this case means for your own chart
The start of a Luck Pillar sequence is not a fixed age. It is measured from your birth moment to a specific solar term, and the interval is converted into a starting age. This case sits about two hours before Jingzhe, so the interval is tiny and the first period begins within days rather than years.
That produces a result that looks wrong at first glance. Most readers expect a starting age of several years, because that is what they have seen in other charts. Here the engine returns a start date in March 2026 for a March 2026 birth, which is the correct consequence of a two-hour interval under the stated conversion.
The useful lesson is that the starting age is a computed quantity with a wide range, not a constant. It depends entirely on where your birth falls within the solar month, which is why two people born a fortnight apart can start their sequences years apart.
It also explains why starting ages reported by different tools diverge more than any other single value. The interval itself is measured against a solar-term timestamp, and the conversion from interval to age follows a traditional rule with more than one accepted form. Two tools can agree completely on your four pillars and still disagree here, because the disagreement lives in the conversion rather than in the chart.
Check your own record
- Look at the interval between your birth moment and the reference Jie your calculator names, rather than only at the resulting starting age.
- If your starting age looks unusually small or large, check whether your birth sits close to a Jie. That is the usual explanation.
- Confirm the Jie timestamp your calculator used, since a few minutes of difference matters when the interval is only hours.
Which convention is in play
- Calculation fact
- The pinned engine measures a short forward interval to Jingzhe for this input and returns a start receipt days later rather than years later.
- Convention
- The conversion from interval to starting age is a traditional rule with more than one accepted formulation. This engine states its own and applies it consistently.
- Our explanation
- Warning readers that a small starting age looks wrong but is not is our framing. It reflects how surprising the correct output is rather than a claim about the rule.
Conventions and limits
What this case does — and does not — prove
It verifies
Deterministic reproduction of this input under the named engine version and conventions. A pinned-field mismatch stops the production build.
It does not claim
Universal agreement across Bazi schools, interpretation of a real person, or certainty where the historical record is incomplete.
tyme4ts 1.5.2 · cantian-tymext 0.0.27 · sect 2 day boundary · BaziCalculator.ai NOAA/IANA true-solar adapter
calculation-benchmarks-v1 · reviewed 2026-09-05