diff --git a/htdocs/core/class/commonobject.class.php b/htdocs/core/class/commonobject.class.php
index 3d4720147d9..5057b21a74e 100644
--- a/htdocs/core/class/commonobject.class.php
+++ b/htdocs/core/class/commonobject.class.php
@@ -4609,6 +4609,10 @@ abstract class CommonObject
 						$new_array_options[$key] = $this->db->idate($this->array_options[$key]);
 						break;
 					case 'datetime':
+						// This will convert date to timestamp
+						if(!is_int($this->array_options[$key])) {
+							$this->array_options[$key] = strtotime($this->array_options[$key]);
+						}
 						$new_array_options[$key] = $this->db->idate($this->array_options[$key]);
 						break;
 		   			case 'link':