class TZInfo::DataTimezone

def transitions_up_to(to, from = nil)
  raise ArgumentError, 'to must be specified' unless to
  to_timestamp = Timestamp.for(to)
  from_timestamp = from && Timestamp.for(from)
  begin
    info.transitions_up_to(to_timestamp, from_timestamp)
  rescue ArgumentError => e
    raise ArgumentError, e.message.gsub('_timestamp', '')
  end
end