I have created a graph in Excel 2003 with two columns of data that are the times and date. The y-axis of my graph is supposed to be the time in the format "00:00:00" and the x-axis is the date that these occur. For some reason, the y-axis of this graph is not functioning correctly. The original columns of data are already formatted for the correct time format and I have tried to right-click within the y-axis of the graph to adjust the settings, but to no avail.