2.1.69 [HTML5] Section Date state (type=date)

V0154: The Date state is not supported

The specification states: Date state (type=date)
     When an input element's type attribute is in the Date state, the rules in this 
     section apply.

IE11 Mode, IE10 Mode, IE9 Mode, IE8 Mode, IE7 Mode, and IE5 (Quirks) Mode (All versions)

The Date state is not supported.