Recently, I moved out of the city and got smacked in the face with the daily commute. I tapped into Google's Transit data to try figure out a better departure time.
There wasn't (at least, for anyone sane)
On the same data, I produce a heatmap showing 5 minute intervals for each day of the week:
Something about that tells me that Capetonians aren't fond of working late on Friday's ;)