"Latest update from the racetrack: racers are warming up!"
I didn't take a look at the clock, but I did take it at that "Hostile" flag down there: Powerplay stuff? I'm afraid I didn't take this into account Hope it won't cause you troubles.
Re: the race length estimate, in my last "simulation" I completed the run in a little under 34 minutes. I took a fairly relaxed approach during flight, and even in the SRV I took my sweet time to stop and
I've not yet tried a proper run at the best of my abilities, but I expect it can be done in around 30 minutes even not counting bonuses.
Plan the way in, plan the way out.