If you start work at 8am, I91/ I95 shouldn't be a problem. I commuted from Hamden out that way for 7 years and it was very smooth. I would get to the interchange around 7:45. You could also take route 15, get off exit 59, and have a pretty straight shot to the VA through town. 25 minutes tops. Best bet is to use an app like Waze, it'll give you the quickest route each day.