How long was the time jump between Walker shooting “Konrad” and Falcon one showing up?

I never thought much about this until I read in an old script or something “Two Weeks later” basically implying Walker to living up there for the course of two weeks. Obviously it’s left ambiguous now, plus the two weeks bit wouldn’t make sense.

Does anyone have some thoughts of this?

(Besides the theory of Walker being in Hell/Purgatory or that this was a dying dream he had)