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How chart verification works
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Astronomy & calendar

Astronomy & Chinese Calendar Workbench

Xuanji Astronomy Workbench

Cross-check UTC, Julian Day, lunar calendar, solar terms, Four Pillars and planetary positions in one astronomy workbench.

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A structured Astronomy and Calendar Workbench calculation with a reproducible chart, result and practical interpretation.

The form shows only inputs used by this method.

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Which time should be used?

Uses your device date, time and time zone at submission. Location is not accessed.

PlaceMatches time zone automatically

No location selectedType at least 2 characters to search worldwide

Input depthOnly inputs used by this calculation are shown

Use the details you enterThis level does not collect background details that are not used in the calculation.Needs: Only inputs used by this calculation are shown

Detailed adjustmentsTime zone, coordinates and orientation
Core data appears first; sources and limitations can be expanded.
01

What you get

  • Local time, UTC and Julian Day
  • Lunar calendar, solar terms and Four Pillars time
  • Sun, Moon and planet positions
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How it works

Inputs
The form shows only inputs used by this method.
Method
A deterministic engine calculates the chart before the result is interpreted.
03

How to read it

Align location and timezone first, then compare the modern astronomy and traditional calendar columns without collapsing their different models.

04

Frequently asked questions

What is Astronomy and Calendar Workbench?

Cross-check UTC, Julian Day, lunar calendar, solar terms, Four Pillars and planetary positions in one astronomy workbench. It uses the same submitted inputs and fixed calculation rules each time.

What does the result include?

Local time, UTC and Julian Day; Lunar calendar, solar terms and Four Pillars time; Sun, Moon and planet positions.

What if the time or place is uncertain?

Use the closest supported value, keep the uncertainty visible, and compare boundary cases before interpreting the result.