Plotting values across days and time

Hi all,

Wondering if anyone has some ideas/suggestions on a way to visualize the number of x occurences by Day and Time, with the goal of easily seeing the intersection where most occurences occur (i.e. X event happens most often on Fridays at 6PM). 

I was thinking of a scatter chart, but I can't put non-aggregatable values on my X , Y axis. Thoughts?

Thanks!