No, a nanosecond is not faster than the speed of light. The speed of light in a vacuum is considered to be the ultimate speed limit in our universe, and nothing can travel faster than it. The speed of light is approximately 299,792 kilometers per second (km/s) or about 186,282 miles per second (mi/s).
A nanosecond, on the other hand, is a unit of time equal to one billionth (1/1,000,000,000) of a second. It is a very short duration of time, but it does not imply any movement or speed. It simply represents a time interval.
No matter how small a time interval you consider, it will always be within the framework of the speed of light. In other words, nothing can travel faster than the speed of light, regardless of the duration of time being measured.