method

valid_time?

v1_8_6_287 - Show latest stable - Class: Date

valid_time?(h, min, s)

public

Do hour h, minute min, and second s constitute a valid time?

If they do, returns their value as a fraction of a day. If not, returns nil.

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.

# File lib/date.rb, line 672
  def self.valid_time? (h, min, s)
    h   += 24 if h   < 0
    min += 60 if min < 0
    s   += 60 if s   < 0
    return unless ((0..23) === h &&
                   (0..59) === min &&
                   (0..59) === s) ||
                  (24 == h &&
                    0 == min &&
                    0 == s)
    time_to_day_fraction(h, min, s)
  end

valid_time?

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