*Season Six picks up immediately after the Season Five finale. No time has passed*.
March 2012 - The Liars are locked outside of the Dollhouse after trying to escape. Spencer tells them that Charles (who they don’t know at the time is Charlotte) seemed familiar to her, like someone she knew as a child. This still makes no sense, or the fact that Charlotte would be dressing as a man (Maybe she meant Noel since we know that he was present at the Dollhouse). (601).
March 2012 - The Liars & Mona are completely fenced in for about a week. Charlotte leaves them there to face the elements, before finally letting them back in days later (601).
(One Week Later…)
March 2012 - As soon as the Liars enter the dollhouse, they are all gassed (except for Mona). They wake up in a replica of the Rosewood Medical Morgue & this is when Charlotte micro-chips them (601).
Mona comes in to the morgue & tells them that she’s been locked in her room the whole time. All of a sudden, an announcement comes over the PA system that instructs the girls to head back to their rooms for their "surprise", but Mona refuses. (This must make "A" pretty mad). The Liars head back to their replicated bedrooms & something horrible happens to them when they get back inside. Mona gets thrown in the hole & over the course of the next 3 weeks, Charlotte carries out punishments on all of them. They are forced to partake in certain "games" with her (601).