I have an excel database that has entries by date with a time associated with
each entry. I need to create a monthly line chart that shows the number of
incidents in a time range, i.e. 0000-0159, 0200-0359, 1200-1359, etc.

What the chart will show will be the time range where the most entries are
made.

I am at a loss as to how to start.

Thanks,