It's really important that you set your time zone before the end of the event. If it's not set to the date and time where you are, you might not be able to validate your script to win on April 30.
You can set your time zone by going to "Edit Account Settings." Then, scroll down until you see the time zone drop-down menu and select the date and time where you are. If you don't know what your time zone is, ask your parent or teacher.

