Use the gomonth() function, with a difference of 12 month.
E.g., gomonth(date(), 12) is one year from now.
>I need to check that difference between 2 date is 1 year. For example (for user)
>
>01/01/1991 12/31/1991 is good
>01/01/1992 01/01/1991 is good
>12/31/1991 12/31/1992 is good
>02/01/1991 02/01/1991 is good
>
>other dates which are greater than year ( or 1 year plus 1 day) are bad.
>
>Is there a way of doing this?
>
>TIA
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)