But it is not working. Maybe somebody can tell me what i am doing wrong?
<script type="text/javascript">
google.charts.load("current", {packages:["timeline"]});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
var container = document.getElementById('example3.1');
var chart = new google.visualization.Timeline(container);
var dataTable = new google.visualization.DataTable();
dataTable.addColumn({ type: 'string', id: 'As' });
dataTable.addColumn({ type: 'string', id: 'Os' });
dataTable.addColumn({ type: 'date', id: 'Start' });
dataTable.addColumn({ type: 'date', id: 'End' });
dataTable.addColumn({ type: 'string', role: 'tooltip' });
dataTable.addRows([
[ '1. A', ' ', new Date(2014, 3, 9, 5, 18,8), new Date(2023, 1, 21, 7,45,0),'sdfsdf' ],
[ '1. A', ' ', new Date(2023, 1, 21, 7,45,0), new Date(2031, 12, 3, 10,11,52), 'sdfs' ],
[ '2. B', ' ', new Date(2020, 3, 25, 5, 18,8), new Date(2020, 8, 30, 7,45,0),'sssss' ],
[ '2. B', ' ', new Date(2020, 8, 30, 7,45,0), new Date(2021, 2, 5, 10,11,52), 'aaaaa' ],
[ '3. C', ' ', new Date(2020, 4, 5, 5, 18,8), new Date(2020, 9, 11, 7,45,0), 'sdfsdf'],
[ '3. C', ' ', new Date(2020, 9, 11, 7,45,0), new Date(2021, 2, 17, 10,11,52), 'qqqqqq' ],
[ '4. D', ' ', new Date(2021, 1, 10, 5, 18,8), new Date(2021, 2, 3, 7,45,0), 'sssssssss' ],
[ '4. D', ' ', new Date(2021, 2, 3, 7,45,0), new Date(2021, 2, 27, 10,11,52),'zzzzzzz' ]
]);
var options = {
tooltip: {isHtml: true},
legend: 'none',
height: 375
};
chart.draw(dataTable, options);
}
</script>
<div id="example3.1"></div>