UPDATE FINISH TIME
Step 1: You will need to follow this link to log into your RunSignup account, https://runsignup.com/Profile
Step 2: In your Upcoming Events find the Twilight 12k and select "Manage Registration".
Step 3: You will be brought to your Twilight 12K Registration information page. Here you will select "Estimated Time" in the above menu bar.
Step 4: Once you are at the Estimated Time page, you will then enter your estimated time and select "Save Changes".