If you are flying a NW flight which displays various on screen data on the plane including "Time at Destination," it may be wrong due to the early change to Daylight Saving Time.

For instance, I am pretty sure that the onboard on screen data showed flight 70 arriving DTW at about 10:45 am on the 14th, but the actual time was about 11:45 am.

Check the monitors on the ground, or your cell phone for the correct time. Otherwise, you may sit around and miss your connection.