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When::CalendarTypes::YearLengthTableBased

年初を太陽黄経で決定する暦

Private Instance Methods

_sdn_(date) click to toggle source

年初の通日 

  date    : [y]
    y - 年

  returns : 年初の通日
     # File when/calendartypes.rb, line 523
523:     def _sdn_(date)
524:       y = +date[0]
525:       t = @formula.cn_to_time(y.to_f + @year_epoch + @cycle_offset)
526:       return (t + 0.5 + @day_offset + @timezone).floor
527:     end

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