From @jasonkiss on September 28, 2016 4:12

Email from @asurkov:

input type date - it should be similar to type color input, i.e. 'depends on implementation', so that if the control is implemented a text box, then it should have ROLE_SYSTEM_TEXT role. Also expose text-input-type:date when a text box.
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same for input type date and time
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el-input-localdateandtime, el-input-input-month and el-input-week are same as date type

Copied from original issue: w3c/aria#440