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External Data Source

Source

Regular Expression
^(((19|2\d)\d{2}\/(((0?[13578]|1[02])\/31)|((0?[1,3-9]|1[0-2])\/(29|30))))|((((19|2\d)(0[48]|[2468][048]|[13579][26])|(2[048]00)))\/0?2\/29)|((19|2\d)\d{2})\/((0?[1-9])|(1[0-2]))\/(0?[1-9]|1\d|2[0-8]))$