Any way to highlight current date column in my google spreadsheet?

You would have to use conditional formatting on the column with the dates. Rule should be "Date is today". Choose a color to your likings.

I found this question when searching for a way to highlight a whole column/row.

Here's the way to do it:

Apply to range: A1:Z1000 (this is the range of all columns/rows including the dates)

• Format cells if...: [Custom formula is]
• Formula (for columns): =A$1=TODAY()
• Formula (for rows): =$A1=TODAY()

The dollar sign ($) will keep the reference cell fixed. So if the formula uses A$1 it takes A1, B1, C1 etc to look for the date and then highlights the entire column A, B, C etc.

If the formula uses $A1 it takes A1, A2, A3 etc to look for the date and then highlights the entire row 1, 2, 3 etc.

Just make sure that "range" covers the entire rectangle of cells and not just one date. It's easy to adapt if your dates are in a different row/column.

Hope this helps the next person who comes here with a similar problem :)