When Does "Peaky Blinders" Season Three (2016) Take Place?
"Peaky Blinders" season three is a crime historical fiction television series showran by Steven Knight that released May 5th, 2016. So when is Peaky Blinders" season 3 set?
It takes place in the year:
We know this because after the 1922 AD prologue in season 3 episode 1 there's a title card superimposed over the footage telling us it's now "". So it's probably around May of 1924 AD.

1924 AD
We know this because after the 1922 AD prologue in season 3 episode 1 there's a title card superimposed over the footage telling us it's now "". So it's probably around May of 1924 AD.
1922 + 2 = 1924.
Season 3 episode 5 includes a 3 month jump . This brings the rest of the season to August of 1924 AD.
Additionally, (like the last season) there's a prologue flashback in season 3 episode 1 to the end of the previous season, "Peaky Blinders" season two (2014), which takes place on May 31st, 1922 AD. So it's certainly May of 1922 AD at this point.