Metrics charts x-axis showing more than 24 hours of data should be labeled according to the scale

Currently, when a mouse is not hovering over a Metrics plot, the plot will show particular hours as labels for the x-axis. For example, if an 8 hour range of time is displayed, the time every two hours will be labeled.

However, if more than 1 day is displayed, the x-axis labels are less useful. The particular time once/day is displayed, but the day is not included. For example, when I display a week of data, 07:00 is highlighted on each particular day, but it is not clear which day that is (unless if I hover over the chart).

This is even worse if more than 1 week is selected -- in that case, two 07:00 times are displayed, with no indication of the date. It's impossible to gauge when a trend started or changed based on the labels alone.

It would be better if the date were included or shown instead as the label for plots that show a wider date range.