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Chart Method2026-06-296 min

True Solar Time or Beijing Time?

A Xingque AI and Horosa user guide to true solar time, Beijing Time, hour-boundary cases, and why chart analysis should keep one consistent time convention.

True Solar TimeBeijing TimeChartingTime Convention
Reference video: True Solar Time or Beijing Time?

Start with the time convention, not just a software toggle

When using Xingque AI or Horosa for charting, case notes, and AI-assisted analysis, birth time is not just a number. It depends on location, time zone, calendar rules, solar terms, and the charting method you are following.

The true solar time versus Beijing Time question asks whether local longitude should be included before chart calculation. If that assumption is unclear, a birth time near an hour boundary can lead to different inputs.

Beijing Time is for records; true solar time focuses on local solar rhythm

Beijing Time is China Standard Time. It is the usual form for daily records, hospital birth records, documents, and communication across regions.

True solar time pays more attention to longitude and apparent solar motion. Some traditional systems discuss converting by birthplace, but different schools, teachers, software tools, and settings may not follow the same rule.

For Xingque users, consistency matters most

In practice, avoid switching between Beijing Time and true solar time inside the same case. First confirm the method and software settings, then write that convention into the case note.

If you use AI to analyze the chart later, tell the model which convention was used. For example: “this chart uses Beijing Time” or “this chart has already been converted to true solar time.” This prevents the AI from silently assuming a different input.

Copyable AI note
The birth time convention for this chart is [Beijing Time / converted true solar time]. Please keep this assumption throughout the analysis. If any judgment depends on an hour-boundary case, remind me to recheck the birth time and location.

Recheck cases near an hour boundary

If the birth time is close to an hour-branch boundary, true solar time conversion, birthplace longitude, daylight saving history, or recording errors may affect the final hour branch. Check the input before asking AI for conclusions.

For times far from a boundary, the practical impact may be smaller, but it is still useful to record whether the case uses Beijing Time or true solar time. For long-term case research, this metadata is more valuable than a one-off answer.

Use the video as a methodology prompt, not a final ruling

This kind of discussion is useful because it reminds users to make charting assumptions explicit. It should not replace software documentation, school-specific rules, or verification of the original birth record.

The purpose of Xingque AI is to connect local charting, case notes, and AI-assisted analysis into a reviewable workflow. Clear time conventions make summaries, observations, and later case notes more consistent.

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