Just double click on to the date and time displayed in the taskbar. You will then get the date and time properties screen. There you can set the time and also the date.
Some times when you browse folders in details view, the view may be cluttered and you might want to resize the column widths manually to get the complete details fit in a single screen in the horizontal direction so that you need not use the horizontal scroll bar to view the details which are off screen. Alternatively, Windows Xp provides an automatic way to adjust column width. Just select any row in the list and press they key combination, “ctrl + ‘+’of the numeric key pad”.