I believe this is the report where the original number came from:
http://www.bot.com/Content/Navigatio...2011_Final.pdf
It was released this week by the Toronto Board of Trade and compared Toronto to 23 other global cities on general "Prosperity". It made the news in Calgary because we came in 3rd overall behind Paris and San Francisco.
The detailed transportation information starts on page 62 of the PDF. It says it the average time of trip "to and from work", so I don't know if that means round trip or each way. Having been stuck in LA rush hour, I find it hard to believe that the average commute in Los Angeles is 11 minutes shorter than in Calgary.
I found it interesting that a higher percentage of Calgarians take non-auto transportation to work than those damn hippies in San Francisco and Seattle.
To answer the original question, I work off of 64th Ave NE west of the airport and live close to 16th Ave and Edmonton Trail. It's about a 10km trip one way and takes about 10 minutes door to door on a normal day. The trip to work is a little longer just because the interchange at Deerfoot and 16th is a pain when you're going from eastbound to northbound. I used to live by Chinook and took Glenmore and Deerfoot every day. On a good day, I could make it in a little over 15 minutes, on a bad day, an hour wasn't unheard of.