JSFiddle - React, Tailwind, and code Playground

HTML

<form id="form">
            <br />
            <div class="wrapper">
              <div class="vragen">
                <h1>Classes</h1>
                <h2>Bussiness</h2>
                <table width="100%" border="0" cellpadding="5">
                  <tbody>
                    <tr bgcolor="#E3EAF6">
                      <td width="15" align="left" valign="top" bgcolor="#FEF3E4"><input type="hidden" name="business" value="~" /></td>
                      <td width="150" align="left" valign="top" bgcolor="#FEF3E4"><em>Day</em></td>
                      <td width="250" align="left" valign="top" bgcolor="#FEF3E4"><em>Time</em></td>
                    </tr>
                    <tr>
                      <td width="15" align="left" valign="top"><input name="business" type="radio" class="time" value="Wednesday Oct/30 | 10:00 AM- 12:15 PM" /></td>
                      <td width="150" align="left" valign="top">Wednesday Oct/30</td>
                      <td width="250" align="left" valign="top">10:00 AM- 12:15 PM</td>
                    </tr>
                    <tr>
                      <td width="15" align="left" valign="top" bgcolor="#FEF3E4"><input name="business" type="radio" class="time" value="Thursday Oct/31 | 1:00 PM - 3:15 PM" /></td>
                      <td width="150" align="left" valign="top" bgcolor="#FEF3E4">Thursday Oct/31</td>
                      <td width="250" align="left" valign="top" bgcolor="#FEF3E4">1:00 PM - 3:15 PM</td>
                    </tr>
                    <tr>
                      <td width="15" align="left" valign="top"><input name="business" type="radio" class="time" value="Friday Nov/01 | 10:00 AM- 12:15 PM" /></td>
                      <td width="150" align="left" valign="top">Friday Oct/31</td>
                      <td width="250" align="left" valign="top">11:00 AM- 1:15 PM</td>
                    </tr>
                    <tr>
                      <td width="15" align="left" valign="top" bgcolor="#FEF3E4"><input...

CSS

.red td {
background-color: red!important;
}

JavaScript

$( document ).ready(function() {

$(".time").change(function() {
    
    var values = $("input.time").map(function(){
        return $(this).val();
    });
    values.each( function (){
    var overlapping = $("input.time[value='"+ this +"']");
        if (overlapping.filter(":checked").length > 1){                            
            overlapping.parents("tr").addClass("red");}
    else{
        overlapping.parents("tr").removeClass("red");
    }
    })

});

});