Column A Row 6 is an unprotected date field (mm/dd/yyyy).
Column H Row 6 is a protected date field (mm/dd/yyyy).

When you enter a date (i.e., 01/01/2006) into A6, 180 days are added to the
date and is displayed in H6 (=A6 + 180) with the result being 06/30/2006.

When A6 is null, H6 displays 06/28/1900.

First of all, am I using the right method to add 180 days to A6.
If yes, how can I make H6 not display the odd date when A6 is null.

Thank you in advance for your assistance.

Rick