I was thinking of relocating the SS right after Day 60 ( http://re-monster.wikia.com/wiki/Day_51-60/Day_60/Sidestory ), the SS doesn't have a specified timeline, but I speculate it's at Day 34, my reasons are the following :
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Project 【■ ■ ■ ■】 moved to Phase Three】
【Ability Restraint Function (Limiter) Released】
【ESP 【■ ■ Ability】 Ability Complete Liberation Started........ Liberation Confirmed
【Subject K's ■ ■ ■ ■ ――】
【On WA Axis' ――――】
【Key Figure PA is ――――】
【――――】
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It's when he evolved into an Ogre, why ? Because that's the timeframe Rou mentioned while eating the wyvern that he killed in the arena in the kingdom when he said that he suspects that his [Absorption] ability may have evolved. The third Phase may refer to his third Ogre form, 1st Phase goblin, 2nd Phase Hobgoblin and 3rd Phase Ogre.