Do you start work at 9?, and do you drive or train?I work out in Goring and the ride from Hove is 11 miles. I plan on doing that ride to and from work at least 15 times before the day.
I used to drive a similar distance along the coast, for 9am.
It was approx 20-30mins quicker to ride.
Deffo get the tyres sorted before you start, as there's no enjoyment otherwise.
But be prepared you might actually take to it, which will involve getting a road bike/hybrid, and lycra.
Before you know it, you'll be spending all July on the Tour de France thread.