I want to know this:
0 am - avg. time on site = Xmins
1 am - avg. time on site = Xmins
2 am - avg. time on site = Xmins
3 am - avg. time on site = Xmins
4 am - avg. time on site = Xmins
5 am - avg. time on site = Xmins
...
It would be nice to have it as a barchart in Google Analytics, but since there is a maximum set to nine bars in dashboard, it doesn't seem possible.
Might be a line chart, but there is no such grouping there, right?