public function setFormat($format)
    {
        $this->format = (string) $format;

        foreach ($this->items as $time) {

            $time->setFormat($format);
        }

        return $this;
    }
public function setFormat($format)
    {
        $this->format = (string) $format;

        foreach ($this->items as $time) {

            $time->setFormat($format);
        }

        return $this;
    }
public function setFormat ( $ format ) { $ this -> format = ( string ) $ format ; foreach ( $ this -> items as $ time ) { $ time -> setFormat ( $ format ) ; } return $ this ; }
Defines the format used in all items of collection
@return \Wallacemaxters\Timer\Collection
Defines the format used in all items of collection