The timezone used for the Receipt date and Checkin scan time are based on the timezone set for your Punchh account. If you change the timezone for your admin user, your reports with datetime values will generate in that timezone.
For more information on how to adjust your admin timezone, please see this article:
How to change the admin timezone on Punchh Platform?
If further assistance is required, submit a ticket to Punchh Support. (For help submitting a ticket, click here)