https://drupal.stackexchange.com/questions/297748
Question
I have a date field:
the year selection is possible 20 years back from now:
But I need it to be 25 years. Is this a fix Drupal setting or can I change that?
Solution
The default is actually -10 years
Since yours is longer, scroll own and select "Other" and type -25
Save settings
Now when you edit again, you should see