Set Current DateTime to input using JavaScript

.c#

c# model

public DateTime DateTime { get; set; }

.cshtml

Razor 

/// form code ///

<input asp-for="Model.Input.DateTime" class="form-control" />

/// form code ///

.js

JS 

// Inp

<script>
	$.fn.setNow = function (onlyBlank) {
		var now = new Date($.now())
			, year
			, month
			, date
			, hours
			, minutes
			, seconds
			, formattedDateTime
			;

		year = now.getFullYear();
		month = now.getMonth().toString().length === 1 ? '0' + (now.getMonth() + 1).toString() : now.getMonth() + 1;
		date = now.getDate().toString().length === 1 ? '0' + (now.getDate()).toString() : now.getDate();
		hours = now.getHours().toString().length === 1 ? '0' + now.getHours().toString() : now.getHours();
		minutes = now.getMinutes().toString().length === 1 ? '0' + now.getMinutes().toString() : now.getMinutes();
		seconds = now.getSeconds().toString().length === 1 ? '0' + now.getSeconds().toString() : now.getSeconds();

		formattedDateTime = year + '-' + month + '-' + date + 'T' + hours + ':' + minutes + ':' + seconds;

		if ( onlyBlank === true && $(this).val() ) {
			return this;
		}

		$(this).val(formattedDateTime);

		return this;
	}

	$(function () {
		// Handler for .ready() called.
		$('input[type="datetime-local"]').setNow();

	});
</script>

Inspired by "HTML5 Input datetime-local default value of today and current time"