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BUILT-IN MATHEMATICA SYMBOL

DatePattern

represents the characters of a date with elements of type

allows separators that match the string expression sep.

If no explicit separator is specified, the must be separated by , , , or characters.

Compare a string to a list of date elements:

Compare to a list of time elements:

Compare to a pattern with all separators explicitly given:

Compare a string to a list of date elements:

Out[1]=

Compare to a list of time elements:

Out[1]=

Compare to a pattern with all separators explicitly given:

Out[1]=

Date elements do not match out-of-range values:

Test a string allowing only "/" characters as separators:

Test the same string allowing only colon separators:

Define a function only for month, year strings:

The function returns unevaluated for other input patterns:

DateString gives results that match a date pattern: