Engine Cranking

I just wanted to get some opinions on what you guys think may or may not be wrong with my car, '00 Civic EX coupe with zero mods.
Normally when we turn the key to start our cars, the engine cranks twice really quickly and starts right up. Takes a second at most. My car usually does that. But when the air temp gets cool, or if i don't drive my car for a day or so, the engine will crank for 3 or 4 seconds tops and then start right up. Is this something to be concerned with or no? If this is a warning sign of some sort, any ideas what might need to be fixed/replaced?

Is this something to be concerned with or no?

.............No

nope, nothing you should be worried about.

Ok, thanks guys. :)