I have made a revision timetable weekly throughout the holidays, and so far, I have been doing around 7+ hours a day. Today is a little less, probably 5/6ish, but I am definitely spending majority of my time revising.
I tend to have a day where it is considerably less, perhaps 3-4, but 6 out of the 7 days a week I am spending probably around 7, so I agree with the statement.