Using the Calendar feature To use the Calendar feature: Click the Calendar button on the right side of the field. The Select a Date and Time dialog box is displayed. If necessary, click the Back or Forward buttons to find the correct month. Click a date to select it. Select hours, minutes, and meridian option from the drop-down lists. Click OK. The date and time you select displays in the field. If necessary, drag one side of the column to view the entire entry.