Google Charts has difference of two hours in the display, how to solve?

I'm having this google charts example code, however in my midwest region of Brazil , it shows difference of two hours, how to solve this spindle problem? Thank you in advance.

google.charts.load('current', {'packages':['bar']});
    google.charts.setOnLoadCallback(drawChart);

    function drawChart() {

      var data = new google.visualization.DataTable();
      data.addColumn('timeofday', 'Time of Day');
      data.addColumn('number', 'Emails Received');

      data.addRows([
        [[8, 30, 45], 5],
        [[9, 0, 0], 10],
        [[10, 0, 0, 0], 12],
        [[10, 45, 0, 0], 13],
        [[11, 0, 0, 0], 15],
        [[12, 15, 45, 0], 20],
        [[13, 0, 0, 0], 22],
        [[14, 30, 0, 0], 25],
        [[15, 12, 0, 0], 30],
        [[16, 45, 0], 32],
        [[16, 59, 0], 42]
      ]);

      var options = {
        title: 'Total Emails Received Throughout the Day',
        height: 450
      };

      var chart = new google.charts.Bar(document.getElementById('chart_div'));

      chart.draw(data, google.charts.Bar.convertOptions(options));
    }


<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script><divid="chart_div"></div>