This document discusses various date and time functions in Microsoft VisualBasic including DateAdd, DateDiff, DatePart, DateString, DateValue, Now, Second, TimeOfDay, TimeString, TimeValue, Today, WeekDay, and WeekDayName. It provides the arguments and usage for each function, describing what each one returns such as a date/time value, string, or integer. Controls like buttons, labels, and DateTimePickers are also mentioned.