Regular Expressions 101

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/(^(((\d\d)(([02468][048])|([13579][26]))-02-29)|(((\d\d)(\d\d)))-((((0\d)|(1[0-2]))-((0\d)|(1\d)|(2[0-8])))|((((0[13578])|(1[02]))-31)|(((0[1,3-9])|(1[0-2]))-(29|30)))))\s(([01]\d|2[0-3]):([0-5]\d):([0-5]\d))$)/
/
All the errors detected are listed below, from left to right, as they appear in the pattern.
/ An unescaped delimiter must be escaped with a backslash (\)
/ An unescaped delimiter must be escaped with a backslash (\)
Your regular expression does not match the subject string.Try launching the debugger to find out why.

Regular Expression
No Match

/
/

Test String