Rational Developer for System z
PL/I for Windows, Version 8.0, Programming Guide

Using built-in functions with MLE

The date patterns for PL/I MLE are supported by the DAYS and DAYSTODATE built-in functions. These built-ins both accept the optional argument (w) that specifies a window to be used in handling two-digit year patterns. If you specify w as part of DAYS or DAYSTODATE, the value you enter overrides the value as defined by the WINDOW compile-time option.

Rational Developer for System z
PL/I for Windows, Version 8.0, Programming Guide