My interview began at 9am at the Microsoft NERD Center in Cambridge, MA. I had three interviews scheduled before the lunch break and three interviews after. All the interviews were standard - straightforward whiteboard coding or brainteasers. Many of my interviews ran over time (one ran 45 mins over). I ended up not having time for lunch at all - my previous interview had run over and only half an hour of time had been scheduled, so I had 15 mins to purchase lunch in the lobby and run back upstairs to make the next interview. I would advise other candidates to bring their own lunches - the cafe was extremely crowded and it took me the entire 15 mins to get food and pay. I didn't have a complete schedule for the day, so I was unable to give the name of my next interviewer to the receptionist and ended up waiting in the lobby until my interviewer eventually came out to investigate. Since my interviews had run over time, my day was extended by an hour and I did the final coding interview after my meeting with the hiring manager (which was supposed to be the end of the day). I would encourage other candidates to brush up on their basic coding skills (string manipulation etc.) and brainteasers - the interviews were not design heavy. I would also encourage candidates to get a copy of their schedules in advance in case things go awry as security is very tight in the building. If I were to interview again, I would also bring snacks just in case.