JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://momentjs.com/downloads/moment-with-locales.js"></script>
<div class="todayform">
				<form name="3" type="date">
					<select id="select2" class="calc3selecto" size="1" data-calc="">
						<option value="0">Сегодня</option>
						<option value="10" name="tommorow">Завтра</option>
						<option value="10" name="aftertom">Послезавтра</option>
						<option value="10" name="11">11 октября</option>
						<option value="10" name="12">12 октября</option>
						<option value="10" name="13">13 октября</option>
						<option value="10" name="14">14 октября</option>
					</select>
					<!-- <input type="hidden" title="check[]" value="1">  -->
				</form>
			</div>



<div class="timeform">
				<form name="4">
					<select id="select3" class="calc3timefrom" size="1" data-calc="">
						<option value="40" name="until09">09.00</option>
						<option value="450" name="until10">10.00</option>
						<option value="40" name="until11">11.00</option>
						<option value="420" name="until12">12.00</option>
						<option value="480" name="until13">13.00</option>
						<option value="40" name="until4">14.00</option>
						<option value="40" name="until5">15.00</option>
						<option value="40" name="until6">16.00</option>
						<option value="40" name="until7">17.00</option>
						<option value="40" name="until8">18.00</option>
						<option value="40" name="until9">19.00</option>
						<option value="40" name="until20">20.00</option>
						<option value="40" name="until21">21.00</option>
						<option value="40" name="until22">22.00</option>
						<option value="40" name="until23">23.00</option>

					</select>
				</form>
    
    <script>
        var d = new Date();
        var t = d.getTime();
        var a = parseInt( prompt( '+ часов' ) );
        d.setTime( t + a*3600000 );
        document.write( d );
    </script>