There was a similar experiment done some time back. IIRC, the subjects eventually settled on to a 27-hour daily cycle, rather than our normal 24-hour cycle. Th

There was a similar experiment done some time back. IIRC, the subjects eventually settled on to a 27-hour daily cycle, rather than our normal 24-hour cycle. That seems to be occurring here too. With them needing a longer objective time to match a 'standard' subjective time.