In which format should I put the date and time, for use in the HTML5 input element with DateTime type?
I have tried:
<input type="datetime" value="" ...
A string representing a global date and time.
Value: A valid date-time as defined in [RFC 3339], with these additional qualifications:
•the literal letters T and Z in the date/time syntax must always be uppercase
•the date-fullyear production is instead defined as four or more digits representing a number greater than 0