class Chronic::Time

def self.normalize_offset(offset)

normalize offset in seconds to offset as string +mm:ss or -mm:ss

def self.normalize_offset(offset)
  return offset if offset.is_a?(String)
  offset = Chronic.time_class.now.to_time.utc_offset unless offset # get current system's UTC offset if offset is nil
  sign = '+'
  sign = '-' if offset < 0
  hours = (offset.abs / 3600).to_i.to_s.rjust(2,'0')
  minutes = (offset.abs % 3600).to_s.rjust(2,'0')
  sign + hours + minutes
end

Class Methods