Yes, which is a tiny span of time judging by the level progression. Shutdown happens immediately after that cutscene, Composer happens right after shutdown, and Midnight happens shortly after Composer. Maybe "a few" was being a little strict, but the events shown are implied to be somewhat continuous. 5-10 hours seems reasonable, and it's very probably less than a day.

Regardless of what exactly it is, reminiscently saying "she said that to me once..." seems rather bizarre wording.