PHPExcel How to set a date in cell

Question

I need to put a date in a cell, when I take a look to its format it looks like *14/03/01.

The value I put is a simple string and for that reason when I get the calcu

Answer 1

$duree = '08:00:00';
PHPExcel_Cell::setValueBinder( new PHPExcel_Cell_AdvancedValueBinder() );
$sheet->setCellValueByColumnAndRow($row, $num, $duree);
$sheet->getStyleByColumnAndRow($row, $num)
      ->getNumberFormat()
      ->setFormatCode(PHPExcel_Style_NumberFormat::FORMAT_DATE_TIME3);

And in my cell i can see 08:00