us date format for opencart 3

changes.php

<!-- Modify the catalog English default.php file -->

-<file name="catalog/language/en-gb/en-gb.php">

$_['date_format_short'] = 'd/m/Y'; replace this line with
this line
$_['date_format_short'] = 'm/d/Y';

$_['date_format_long'] = 'l dS F Y';
replace this line with
this line
$_['date_format_long'] = 'l, F j, Y';

<!-- Modify the admin English default.php file -->

$_['date_format_short'] = 'd/m/Y'; replace this line with
this line
$_['date_format_short'] = 'm/d/Y';

$_['date_format_long'] = 'l dS F Y';
replace this line with
this line
$_['date_format_long'] = 'l, F j, Y';


-<file name="admin/language/en-gb/en-gb.php">

$_['date_format_short'] = 'd/m/Y'; replace this line with
this line
$_['date_format_short'] = 'm/d/Y';

$_['date_format_long'] = 'l dS F Y';
replace this line with
this line
$_['date_format_long'] = 'l, F j, Y';

Check the screenshot how date format has been changed