I found out how to use current date.
To add current date fields in LifeCycle
You can use a date/time field to automatically show the current date by using the Runtime Property option in the Value tab of the Object palette.
Note: When using a current date field, the date updates to reflect the system’s current date each time a user opens the form.
1. In the Object Library palette, click the Standard category and drag a Date/Time Field object onto the form design.
2. In the Object palette, click the Value tab and select Calculated - Read Only from the Type list.
3. Select the Runtime Property option.
4. View the form in the Preview PDF tab.
Hope this helps!
Brian