method

jd

v1_8_7_330 - Show latest stable - 0 notes - Class: DateTime

jd(jd=0, h=0, min=0, s=0, of=0, sg=ITALY) public

Create a new DateTime object corresponding to the specified Julian Day Number jd and hour h, minute min, second s.

The 24-hour clock is used. Negative values of h, min, and sec are treating as counting backwards from the end of the next larger unit (e.g. a min of -2 is treated as 58). No wraparound is performed. If an invalid time portion is specified, an ArgumentError is raised.

of is the offset from UTC as a fraction of a day (defaults to 0). sg specifies the Day of Calendar Reform.

All day/time values default to 0.

Show source

# File lib/date.rb, line 1470
  def self.jd(jd=0, h=0, min=0, s=0, of=0, sg=ITALY)
    unless (jd = valid_jd?(jd, sg)) &&
           (fr = valid_time?(h, min, s))
      raise ArgumentError, 'invalid date'
    end
    if String === of
      of = Rational(zone_to_diff(of) || 0, 86400)
    end
    new!(jd_to_ajd(jd, fr, of), of, sg)
  end

jd

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