Hi, new one for you but still in relation to calculating a date difference. How do I calculate the difference of a date in days picking up the date in either one cell or another cell which is the latest date. For example, date in A1 (1/7/11) and second date in F1 (7/8/11). Cell H1 needs to show the difference in days of either A1 or F1 depending that a date exists in F1. The date in F1 will be the latest date as it is to do with the receipt of cheques and the cell may be blank. Thanks.