Correct, it was still 2 PM, but Jenkins thought it was 2 PM on a day that he’d already worked.
Jenkins was planning to go to bed on Wednesday the 28th at 10 PM and had his next alarm set for 6 AM on Thursday the 1st. He then adjusted his clock back to Tuesday the 27th at 10 PM, planning to sleep 8 hours plus the entirety of the “extra” Wednesday.