Hi jamaican,

One way

In cell A1 put =TODAY()
In cell B1 put Your target date
In cell C1 put =B1-A1

Then use conditional formatting in C1 to fill the cell Red
when cell value is equal to zero.

When you open the file each morning any meetings due that
day will be red. If you aren't going to open it each day it
may be safer to use cell value is less than or equal to zero.

You can come up with a lot of other variations along similar lines.

HTH
Martin