Case 12 of 26
True-solar crossings
Kashgar: correction crosses into the previous day
A far-western longitude within China Standard Time produces a large negative correction.
Boundary question
Can 01:30 civil time become the preceding solar date?
Yes. The normalized true solar time is 22:41 on the previous date, so the chart is calculated from that corrected wall time.
Synthetic input
Recorded facts
- Date
- 2025-12-10
- Recorded time
- 01:30
- Location
- Kashgar, China
- Time zone
- Asia/Shanghai
- Longitude
- 75.9898°
- Gender input
- Male
Pinned expected facts
Verified output
Year
乙巳
Month
戊子
Day
壬子
Hour
辛亥
- Day Master
- 壬
- True solar time
- 2025-12-09 22:41
- Total correction
- -168.72 minutes
- Historical offset
- UTC+08:00 · DST 0 min
- Luck direction
- 逆排
- Reference Jie
- 大雪 · 2025-12-07 05:04:37
- Luck start
- 2026-11-06 23:59:16
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