These FORMATS and INFORMATS are available beginning in Release 8.2,
specifically for the XML engine support:

INFORMAT      DESCRIPTION                 PATTERN

IS8601DA      date                        YYYY-MM-DD
IS8601DN      datetime with date portion  YYYY-MM-DD
IS8601DT      datetime                    YYYY-MM-DDThh:mm:ss[.fffff]
IS8601DZ      datetime with a time zone
YYYY-MM-DDThh:mm:ss[.fffff][Z|[[+-]hh:mm]]

IS8601TM      time                        hh:mm:ss[.fffff]
IS8601TZ      time with a time zone
hh:mm:ss[.fffff][Z|[[+-]hh:mm]]

FORMAT        DESCRIPTION                 PATTERN

IS8601DA      date                        YYYY-MM-DD
IS8601DN      datetime with date portion  YYYY-MM-DD
IS8601DT      datetime                    YYYY-MM-DDThh:mm:ss[.fffff]
IS8601DZ      datetime with a time zone
YYYY-MM-DDThh:mm:ss[.fffff][Z|[[+-]hh:mm]]

IS8601TM      time                        hh:mm:ss[.fffff]
IS8601TZ       time with a time zone
hh:mm:ss[.fffff][Z|[[+-]hh:mm]]

INFORMAT      DESCRIPTION                PATTERN

ND8601DA      date                       YYYYMMDD
ND8601DN      datetime with date portion
ND8601DT      datetime                   YYMMDDHHMMSS
ND8601DZ      datetime with a time zone
ND8601TM      time                       HHMMSS
ND8601TZ      time with a time zone

The "ND" INFORMAT-only equivalents for each "IS" form correspond to
"basic" FORMATS for the "extended" forms.  "ND" means "non-delimited",
that is delimiting characters are omitted, which is an acceptable
alternate representation.

Use of the "ND" variants is discouraged in the XML content.  Types
which are input with "ND" INFORMATS should be output with
corresponding "IS" standard FORMATS.

Complete documentation for these INFORMATS and FORMATS is available in
the SAS 9.1 XML LIBNAME Engine User's Guide.

If running SAS version 8.2 you should apply the hotfix described in
SAS Note 12361 to gain functionality of these 
INFORMATS and FORMATS.

Operating System and Release Information