Workflow condition to alter field if date created on >365 days

Hi

I am attempting to create a workflow to change a field if one field equals a specific option and then if the date created on is greater than 365 days ago. When I set the condition to find the created on date, then choose greater than, the next option is to select a date. I want the workflow to find a year ago not a specific date. Can this be done or would the workflow need to be changed every time and then run on demand?

Thank you