By graph do you mean chart?

If your dates are on an Excel worksheet then you can use conditional
formatting on the cells containing the dates and use the formula
=TODAY() and choose the highlight format you want...

"excelguy" wrote:

I have created a graph that has a row of dates for the next 5 months. I would
like to create this document in such a way that every single day I open the
document on my computer, the particular cell with the date of the current day
is highlighted for me and only on that day. Can this be done?