Civil Time, UTC Offset, and the 23:00 Qimen Day Boundary
OpenFate’s current method uses the user’s civil clock with its exact fixed UTC offset and rolls the day pillar at 23:00 local civil time.
Overview
OpenFate’s current method uses the user’s civil clock with its exact fixed UTC offset and rolls the day pillar at 23:00 local civil time. It does not apply longitude or true-solar-time correction. The stored offset identifies the instant without relying on a later time-zone database lookup. The clock basis and day-boundary hour are part of provenance because either can change the pillars and every dependent placement.
At a glance
- Page role
- Reproducible calculation rule
- Terms covered
- fixed-offset civil time · 23:00 day rollover
- Verification focus
- The stored offset identifies the instant without relying on a later time-zone database lookup. The clock basis and day-boundary hour are part of provenance because either can change the pillars and every dependent placement.
- Stop rule
- Fixed-offset civil time must not be marketed as true solar time. If location or historical offset is uncertain, preserve that uncertainty and do not claim an exact board.
Direct answer and scope
OpenFate’s current method uses the user’s civil clock with its exact fixed UTC offset and rolls the day pillar at 23:00 local civil time. It does not apply longitude or true-solar-time correction.
- Names and related terms: fixed-offset civil time
- Names and related terms: 23:00 day rollover
How the rule is formed or checked
The stored offset identifies the instant without relying on a later time-zone database lookup. The clock basis and day-boundary hour are part of provenance because either can change the pillars and every dependent placement.
Keep the cast moment, UTC offset, method version, palace, and interacting symbols visible before adopting an interpretation.
How to use this in a reading
When a cast is near 23:00 or a daylight-saving transition, show the exact local clock and offset. If comparing a true-solar-time school, calculate it separately and label the result as another method.
- Name the visible chart fact before assigning symbolic meaning.
- Compare the asker and matter anchors with every layer in their palaces.
- Record at least one supporting condition and one counter-signal.
- End with a reversible action and an observable review point.
Worked contrast
A cast at 22:59 and another at 23:01 can share the same two-hour branch yet use different day pillars under this rule. A one-minute visual difference can therefore propagate into different asker anchors and relations.
Common mistake and limit
Fixed-offset civil time must not be marketed as true solar time. If location or historical offset is uncertain, preserve that uncertainty and do not claim an exact board.
Sources and editorial basis
- OpenFate Qimen hour-chart methodOpenFate docs/QIMEN_SYSTEM.md, “Professional calculation contract,” “Interpretation and evidence contract,” and “Rule-source map,” source-reviewed 2026-09-12.Product-specific reference for OpenFate’s fixed-offset civil-time, hour-Qimen, rotating-plate, Chaibu implementation and its deterministic chart fields. A source review on 2026-09-12 does not prove live deployment, other schools, or predictive validity.
- NCC-T06 奇門遁甲專業版操作手冊NCC-T06 manual setting and board-field sections: configurable plate, center, bureau, deity, and day-boundary axes; used as evidence of modern method variation only.A modern professional-software manual used to document that plate, center, bureau, deity, and day-boundary settings vary. It is evidence of configurable practice, not an independent historical authority or accuracy study.
- IANA Time Zone DatabaseTime Zone Database overview and release records; used only to distinguish a named civil-time offset from geographic or true-solar correction.The maintained source for current and historical civil-time offsets and daylight-saving transitions; it provides timekeeping facts, not astrological interpretation.