Why is there a difference in the second rule when regarding the time between the lighting and thunder in Germany and the US? In Germany, it's three seconds and the U.S it's 5 seconds.

Answer 1

Gimme a break.
In three seconds, sound travels 1000m, or 1km
In five seconds, it travels a US mile (1609m)

Answer 2

lol no need to be rude, I just figured that out once I posted the question. HAGD :)