Use the date and time format to display date and/or time values.
Select the cell or cells.
Click Inspector in the toolbar, and then click the Table button.
In the Table inspector, click Format.
Choose “Date and Time” from the Cell Format pop-up menu.
To specify how you want a date formatted, choose a format from the Date pop-up menu.
To specify how you want a time value formatted, choose a format from the Time pop-up menu.
To learn about other cell format types, see Formatting Table Cell Values for Display.