Withdrawal and detox from porn!

What is the withdrawal and detox time-frame for getting off porn
for heavy users? 

There is an interesting YouTube video of a conversation between Gary Wilson,  Gabe Deem and 2 other young men who share their recovery from porn addiction:  (“Your Brain Re balanced Radio”) that discusses in depth some of the research  around this topic. It is long (over an hour) but interesting.

https://m.youtube.com/watch?v=S6iVZvFYqjc