When you set the value of a datetime-local input, the string is normalized into a standard form. A string value of any means that no stepping is implied, and any value is allowed barring other constraints, such as min and max. For month inputs, the value of step is given in months, with a scaling factor of 1 since the underlying numeric value is also in months. QA Whiteboard:. This will be updated as soon as that information is determined.
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