class Numeric

# File lib/trakr/numeric.rb, line 2
def duration
    secs  = self.to_int
    mins  = secs / 60
    hours = mins / 60
    days  = hours / 24

    if days > 0
        "#{days} %02d:%02d:%02d" % [hours % 24, mins % 60, secs % 60]
    elsif hours > 0
        "%02d:%02d:%02d" % [hours, mins % 60, secs % 60]
    elsif mins > 0
        "%02d:%02d:%02d" % [hours, mins, secs % 60]
    elsif secs >= 0
        "%02d:%02d:%02d" % [hours, mins, secs]
    end
end