Answer:
we know it doesn't take place in the USA because phone guy says "welcome to your new SUMMER job" even though FNAF2 takes place in november (as made apparent by the check)
november isn't considered part of summer, it's actually considered part of Autumn.
But.... in the southern hemisphere, November IS considered summer.
So FNAF has to take place somewhere in the southern hemisphere.
So Five Nights At Freddy's takes place in either New Zealand, Australia, or Antarctica.
Explanation:
