Backend\Modules\Analytics\Form\DateRangeType::build PHP Method

    private function build()
    {
        $this->form->addDate('start_date', $this->dateRange->getStartDate(), 'range', mktime(0, 0, 0, 1, 1, 2005), time());
        $this->form->addDate('end_date', $this->dateRange->getEndDate(), 'range', mktime(0, 0, 0, 1, 1, 2005), time());
    }