Ummm, yes, we do get to see it, after it has been converted to more pilot useable presentations such as Pitch Limit Indicators (Eyebrows), Low speed indication on the speed tape, plus a few hundred other functions, some of which you probably don't want to encounter, such as Stall Warning etc.
A day is a unit of time. In common usage, it is an interval equal to 24 hours. It also can mean the consecutive period of time during which the Sun is above the horizon, also known as daytime. The period of time during which the Earth completes one rotation with respect to the Sun is called a solar day.
Day Required. A positive or negative integer representing the day of the month from 1 to 31. If day is greater than the number of days in the month specified, day adds that number of days to the first day in the month. For example, DATE(2008,1,35) returns the serial number representing February 4, 2008.