This option will allow you to see a monthly calendar for any date you
desire, from now until the year 2040.  The current month (or whatever month
you've selected will appear at the top-center of the screen.  The preceding
month will appear to its left, and the next four succeeding months will appear
to its right and below it.  If you wish another month to be centered at the
top, enter at the prompt any date during that month.
     You can also use the arrow keys to change the months shown.  And pressing
the `Home' key will return you to today.
     This option is particularly useful if you want to see the day of the
week on which a particular date falls.  Assume, for instance, that you want to
know the day of the week for the date 55 days from now.  Simply enter today's
date, followed by "+55" (eg: "12 DEC 88 +55").  The desired date will be
highlighted in the small calendar at the top center of the screen.
     To find the number of days between two dates, enter the first date, then
a dash, then the second date (eg: "1 Jan 89 - 12 Mar 89").

IMPORTANT:  If you press the ESC key to return to the main calendar menu, you
will return to where you left it.  If, however, you press <ΔΩ to return to the
main calendar menu, the date highlighted there will be the last date you used
in this routine.  Another use of this routine, therefore, is to quickly skip
several years forward or backward.