public static function readTime5($time) {
		if (empty($time) || $time=='NULL') return null;
		if (is_numeric($time)) {
			return '00:' . $time;
		} else {
			$temp = explode(':', $time);
			return str_pad(intval($temp[0]), 2, '0', STR_PAD_LEFT) . ':' .str_pad(intval($temp[1]), 2, '0', STR_PAD_LEFT);
		}
	}
public static function readTime5($time) {
		if (empty($time) || $time=='NULL') return null;
		if (is_numeric($time)) {
			return '00:' . $time;
		} else {
			$temp = explode(':', $time);
			return str_pad(intval($temp[0]), 2, '0', STR_PAD_LEFT) . ':' .str_pad(intval($temp[1]), 2, '0', STR_PAD_LEFT);
		}
	}
public static function readTime5 ( $ time ) { if ( empty ( $ time ) || $ time == 'NULL' ) return null ; if ( is_numeric ( $ time ) ) { return '00:' . $ time ; } else { $ temp = explode ( ':' , $ time ) ; return str_pad ( intval ( $ temp [ 0 ] ) , 2 , '0' , STR_PAD_LEFT ) . ':' . str_pad ( intval ( $ temp [ 1 ] ) , 2 , '0' , STR_PAD_LEFT ) ; } }
Read 5 character time string

@param mixed $time
@return NULL|string
Read 5 character time string