src/Intervention/Gif/Frame.php
public function decodeDelay()
    {
        if ($this->graphicsControlExtension) {
            $byte = substr($this->graphicsControlExtension, 2, 2);
            return (int) unpack('v', $byte)[1];
        }

        return false;
    }
public function decodeDelay()
    {
        if ($this->graphicsControlExtension) {
            $byte = substr($this->graphicsControlExtension, 2, 2);
            return (int) unpack('v', $byte)[1];
        }

        return false;
    }
Returns delay of current instance

@return int