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Sources

We opened the documents below on the official sites ourselves. The check date is 2026-11-11. Values such as tax rates, limits and rate benchmarks can change, so read the original again before an important decision.

Descriptive Statistics Calculator

Lunar-Solar Date Converter (with leap months)

Zodiac Animal and Sexagenary Year Calculator

All sources

Please note

  • Documents we could not open ourselves are not listed.
  • Calculations fixed by mathematical definition alone, such as percentages and arithmetic, were tested with hand-calculated values and cite no outside document.
  • The date next to each source is the last day we opened that document ourselves.