Turn on or off week numbers in month view and the Date Navigator
Week numbers can appear on the calendar month view and on the Date Navigator in the To-Do-Bar. Week numbers restart at the beginning of each year. By default, week numbers are turned off.
To turn on or off the week numbers, do the following:
Click the File tab.
Under Display options, select or clear the Show week numbers in the month view and in the Date Navigator check box.