"Date Created" field is inaccurate
Gravity Forms stores entry creation dates in Coordinated Universal Time (UTC) by default.
As of Version 1.1.6, GravityView displays Date Created fields using the blog's local timezone for calculating the entry's creation date. If your blog's timezone hasn't been set, your blog will default to using UTC. Read how to set your blog's timezone.
In GravityView 1.1.5 and earlier, Date Created is shown in UTC format.
If you prefer to display the UTC value instead of the timezone-adjusted value, use the
gravityview_date_created_adjust_timezone filter like this:
add_filter( 'gravityview_date_created_adjust_timezone', '__return_false' );
Related: Importing dates in UTC timezone.