Use VBA to Display a Message Box at a Certain Time

[Syrac]

I have a spreadsheet that will be open all day and contains a list of times with corresponding data in adjacent columns.

How would be best to pick up the first time and have a message box appear at that time which displays information in the adjacent cell, then pick up the next time in the row below and do the same etc.?

The spreadsheet will be open all day but times and info are coming from a pivot table that may change every day