I get a lot of variation depending on whether I pick the quickest route, quickest bike, and how I feel. Best-case my ride in is <30 min and my ride home is <35. Typically it's more like 35 and 40 minutes. On a bad-feeling day or if I mountain bike it might take an hour home. Home takes longer because it's uphill and I typically don't feel as well in the afternoon as in the morning. You can check my numbers, I'm in the BF Commuter group on Strava.