JSFiddle - React, Tailwind, and code Playground

HTML

<h3 id="date"></h3>
<table>
  <tr class="price  tr_gray" id="price-look-row">
    <td><b>Зритель</b></td>
    <td class="price_curs price_curs-look01">0</td>
    <td class="price_curs price_curs-look02">0</td>
    <td class="price_curs price_curs-look03">0</td>
    <td class="price_curs price_curs-look04">0</td>
    <td class="price_curs price_curs-look05">0</td>
    <td class="price_curs price_curs-look06">0</td>
  </tr>
</table>

CSS

table {
  table-layout: fixed;
  width: 100%;
}
td {
  border: 1px solid red;
}

JavaScript

// создаем массив с суммами
var arr01 = [1100, 1200, 1300, 1400, 1500, 1600];
var arr02 = [2100, 2200, 2300, 2400, 2500, 2600];

var actualPrice = arr02;

//сравниваем даты
var date = new Date();
var day = date.getDate();
var month = date.getMonth(); 
var year = date.getFullYear();

var month = month + 1;
var nowDate = year + '-' + month + '-' + day;
$("#date").html('Сегодня' + ' ' + nowDate);

if (nowDate < 2017-05-13) {
  actualPrice = arr02;
}
else if (nowDate >= 2017-05-13) {
    actualPrice = arr01;
}

$("#price-look-row .price_curs-look01").html(actualPrice[0]);
$("#price-look-row .price_curs-look02").html(actualPrice[1]);
$("#price-look-row .price_curs-look03").html(actualPrice[2]);
$("#price-look-row .price_curs-look04").html(actualPrice[3]);
$("#price-look-row .price_curs-look05").html(actualPrice[4]);
$("#price-look-row .price_curs-look06").html(actualPrice[5]);