Extract year from date in SPD

Create Sharepoint Workflow 2010

1. Create 2 variables, wholedate and year

2. Define functions

Set Variable:wholedate to currentitem:start time   (return field as ISOFormatted)

  then copy 4 characters from start of variable:wholedate(output to:variable:year)

  then log variable:year to the workflow history list

References:

http://weblogs.asp.net/wesleybakker/archive/2010/12/28/get-datepart-in-sharepoint-designer-workflow.aspx