yes.... and above is how to do that.
Example:
Highlight A1 & B1 and do what's described above. (A1 & B1 look like one cell now, (with the value "Monday" in it), but A2, B2 and both columns from there down are still separate columns. - A2 is the percentage for Monday and B2 is the Time Spent for Monday.
Now, move over to cells C1 & D1, Format those to Center Across Selection and Enter "Tuesday". In cells C2 & D2, enter "Percentage" and "Time Spent". These are the two columns referring to Tuesday...
Simply continue on for the rest of the week.
(See what I mean?)