First, make sure the there is an Event Date setup.
  1. Go to Communities > Special Events > Friends Asking Friends > Kintera Thon >
  2. Hover over your event and click Website Info
  3. Click on Event Information
  4. Go to Communities > Special Events > Friends Asking Friends > Kintera Thon > 
  5. Hover over your event and click Website Info
  6. Click on Website Features
  7. Scroll down and mark Show days left to fundraise
  8. Scroll down to the bottom of the page and click Save
  9. Repeat step1 and 2
  10. Click Publish This Event Now button