Date day of month is too large for the associated year and month

The fully-formatted error message

The 'day-of-month', 29, is too large for its associated 'year' (2007) and 'month' (February).

          2007-02-29?12:25:12.1-01:00 
                  ^^

In this instance, the 'day-of-month' should be in the range 1 to 28.

Substitutions

Name	Value	Type	Source
Input	2007-02-29?12:25:12.1-01:00	String	The ISO8601 string being parsed
Expected	within range	Nothing	What the parse command is looking for
Actual	'29'	Char	What the parse found
PreviousName	Nothing	Nothing	We don't care.
PreviousValue	Nothing	Nothing	We don't care.
PreviousType	Nothing	Nothing	We don't care.
StartOffset	8	Int	The displacement from the start of the string being parsed to locate the leftmost '^'
CharCount	2	Int	The number of '^' chars to position under the value
TopLine	"The 'day-of-month', ?, is too large for its associated 'year' (?) and 'month' (?)."	String	This error category
BottomLine	"In this instance, the 'day-of-month' should be in the range 1 to ?."	String	This error category

Notes

1. The Value column above describes the example values in the sample error message above.
2. Here the number of 'X' is zero. The reason is that the string parsed correctly, but the validation failed.
3. Note that TopLine and BottomLine have '?' marking where values will be substituted.
4. Discovered that validation errors (like this one), have no need for the previous token. That is why the numerous Nothing above. This error structure may need some surgury.