Rather than chart all traffic using multiple data series, you can note only the peak times and chart these times on a graph's vertical axis.

This article explains how to add a secondary axis to a chart in Excel so you can view unlike categories on the same graph. These instructions work in Excel in Microsoft 365, Excel 2021, Excel 2019 ...

If you have uneven distribution of data in your Excel chart, here is a better way to change the automatic axis settings.

How to Create Graphs in Excel With Multiple Columns. Column graphs offer a visual representation of data that allows easy comparison between multiple values. Typically, these columns are uniformly ...