Hi @mikemwm-webdesign-com
I’m 99.99% sure the problem you are facing will be due to a date_default_timezone_set()
call in your theme, or other website filed (perhaps wp-config.php).
Please be sure to read this reply from one of the WordPress moderators: https://wordpress.org/support/topic/read-this-first-wordpress-5-3-master-list/#post-12124062