JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//cdnjs.cloudflare.com/ajax/libs/moment.js/2.8.3/moment.min.js"></script>
<script src="http://momentjs.com/downloads/moment-timezone-with-data.min.js"></script>
<div id="test"></div>

CSS

.is{
    color:green;
    font-weight:bold;
}
.not{
    color:#999999;
}

JavaScript

var timezones= ['Pacific/Pago_Pago','Pacific/Honolulu','America/Anchorage','America/Vancouver','America/Los_Angeles','America/Tijuana','America/Edmonton','America/Denver','America/Phoenix','America/Mazatlan','America/Winnipeg','America/Regina','America/Chicago','America/Mexico_City','America/Guatemala','America/El_Salvador','America/Managua','America/Costa_Rica','America/Montreal','America/New_York','America/Indianapolis','America/Panama','America/Bogota','America/Lima','America/Halifax','America/Puerto_Rico','America/Caracas','America/Santiago','America/St_Johns','America/Sao_Paulo','Atlantic/Azores','Atlantic/Reykjavik','Europe/Dublin','Europe/London','Europe/Lisbon','Africa/Casablanca','Africa/Nouakchott','Europe/Oslo','Europe/Stockholm','Europe/Copenhagen','Europe/Berlin','Europe/Amsterdam','Europe/Brussels','Europe/Luxembourg','Europe/Paris','Europe/Zurich','Europe/Madrid','Europe/Rome','Africa/Algiers','Africa/Tunis','Europe/Warsaw','Europe/Prague','Europe/Vienna','Europe/Budapest','Europe/Sofia','Europe/Istanbul','Europe/Athens','Asia/Nicosia','Asia/Beirut','Asia/Damascus','Asia/Jerusalem','Asia/Amman','Africa/Tripoli','Africa/Cairo','Africa/Johannesburg','Europe/Moscow','Asia/Baghdad','Asia/Kuwait','Asia/Riyadh','Asia/Bahrain','Asia/Qatar','Asia/Aden','Africa/Khartoum','Africa/Djibouti','Africa/Mogadishu','Asia/Dubai','Asia/Muscat','Asia/Yekaterinburg','Asia/Tashkent','Asia/Calcutta','Asia/Novosibirsk','Asia/Almaty','Asia/Dacca','Asia/Krasnoyarsk','Asia/Bangkok','Asia/Saigon','Asia/Jakarta','Asia/Irkutsk','Asia/Shanghai','Asia/Hong_Kong','Asia/Taipei','Asia/Kuala_Lumpur','Asia/Singapore','Australia/Perth','Asia/Yakutsk','Asia/Seoul','Asia/Tokyo','Australia/Darwin','Australia/Adelaide','Asia/Vladivostok','Australia/Brisbane','Australia/Sydney','Australia/Hobart','Asia/Magadan','Asia/Kamchatka','Pacific/Auckland']


$(timezones).each(function(i,zone){
    var samleDte =  moment("1995-7-12");
    if( samleDte.tz(zone).isDST() ){
       ...