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External Data Source

Source

Regular Expression
^(d{0}|(31(?!(FEB|APR|JUN|SEP|NOV)))|((30|29)(?!FEB))|(29(?=FEB(((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00)))))|(29(?=FEB(((0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00)))))|(0?[1-9])|1\d|2[0-8])(JAN|FEB|MAR|MAY|APR|JUL|JUN|AUG|OCT|SEP|NOV|DEC)((1[6-9]|[2-9]\d)\d{2}|\d{2}|d{0})$