User blog comment:YngweeTDP/FNAF Timeline/@comment-29194274-20170616150932

I believe the order goes as follows.

FNaF 4: Fredbear and Springbonnie are still in commission, something that is not shown in earlier games.

FNaF 2: Dates are given that put this game behind FNaF 1. Phone guy is also still alive and he dies (not confirmed) in FNaF 1.

FNaF: The center of this, we know FNaF 2 cannot be ahead of this one because of reasons stated in that section.

FNaF SL: This may also be before FNaF, but we see Springtrap 'created' in this, placing it before FNaF 3.

FNaF 3: Set 30 years ahead of FNaF, with aforementioned facts in FNaF SL, we know that Springtrap was in this, placing it before this game on the timeline.

Knowing me, I screwed everything up. But yeah.