*  01/06/88 This message will be displayed on January 6th, 1988
Mo 02/29/88 This will appear on Monday, February 29th, 1988, and takes
Mo 02/29/88    four lines.  Monday, specified here is superfluous, ??
Mo 02/29/88    or * would be preferred since if 02/29/88 did not fall
Mo 02/29/88    on a Monday, the message would never be displayed!
We ??/15/?? Appears whenever the 15th of a month is on a Wednesday.
Th *        This message will appear every Thursday.
sa 02 ?? ?? Appears every Saturday during February of every year.
FR 02 ?? 87 This will appear every Friday during February in 1987.
*  ??-0?-88 This will appear the first 9 days of every month in 1988.
?? ??-2?-?? This will appear daily from the 20th to end of each month.
Tu 1?-??-88 This will appear every Tuesday in October, November,
Tu 1?-??-88               and December, 1988.
*  ??/??/?? This will appear every day.
*  *        This also will appear every day.