Using Lua to format 0 seconds as 00:00:00

Question

I\'m trying to format a duration (in seconds) as a time and I\'m getting results indicating that I\'m supposed to account for an epoch somewhere. I expected os.date(\"

Answer 1

Lua does not have a vast standard library:

string.format("%.2d:%.2d:%.2d", s/(60*60), s/60%60, s%60)