Password Expiration Days
Specify the number of days until each user's password expires. This calculation starts each time the user sets or resets the password. The default value is 0, meaning the password does not expire.
For example, if you enter a value of 60, and a user resets his password on June 1, the password will expire on July 31. The Expiration Date on the Users form will be set accordingly.
If you reset this value, the change only affects users who modify their passwords after the change was made.