Hi Robb,
This appears to be a bug with the Custom Report template printing on the ${CreationDate} field, it is always returning UTC format date/time regardless of the formatting set via parameters. All other date/time fields in the survey appear to be displaying as local date/time based on region of device. Also note the Print Individual Response preview/print is displaying the correct local date/time, not UTC for this same field.
I have raised a new issue for this bug and added your comments/details to the issue.
Regards,
Phil.