Another way to enter dates is to use one of the NExS date functions. You can use the Format dialog box from the Edit menu to choose how the date should appear in the cell.
NExS internally stores date and time information using the same convention as other popular spreadsheet programs: Dates are represented as an integer equal to the number of days since December 31, 1899. Times are represented as fractions of a day, starting at midnight. For example, 6:00 AM is stored as 0.25 (a quarter of a 24-hour day). Using this convention, date and time values may be used together. For example, the date/time value 1.25 corresponds to 6:00:00 AM, January 1, 1900.