iso8601standardise      Standardise ISO8601 strings
iso8601todataframe      Split Date, Time and DateTime ISO8601 strings
                        into their elements
iso8601todate           Convert date in ISO8601 format into R Date
                        object
iso8601todatetime       Convert date-time in ISO8601 format into R
                        POSIXct object
iso8601totime           Convert time in ISO8601 format into R POSIXct
                        object
iso8601type             Determine the type of ISO8601 strings
