Here's how to calculate that:

* Distance: Pluto is about 3.67 billion miles from the Sun on average.

* Speed of light: Light travels at approximately 186,282 miles per second.

* Time = Distance / Speed:

* (3.67 billion miles) / (186,282 miles/second) = 19,680 seconds

* Convert seconds to minutes: 19,680 seconds / 60 seconds/minute = 328 minutes (which is approximately 5 hours and 20 minutes)