Very interesting prose that is fast paced and feel very experimental. I think some minor formatting could make it easier to read. For example,

D-15Since

A space between the D number and the starting word would work nicely here. Or you could write it like you did later down the story

D+0.5
She stepped into Schiphol Airport for a layover

I like the formatting you used here.

These are minor cosmetic adjustments. I truly enjoyed seeing you play with the words and narrative flow.