The American date notation system.

[fangtengbo]

Please, please, drop the local American "month-day-year" date notation system. It differs from that used in nearly all other countries. Instead, use the International date and time format; typically the ISO 8601 format for all-numeric dates. The USA date system is extremely confusing for everybody, not living in the USA.

[knutsp]

Hello @fangtengbo and welcome to Trac.

This Trac is for the WordPress core software, so I guess you are referrig to this.

WordPress is fully configurable when it comes to date formats, at least all that PHP can handle. The default format after installation is determined by the bundeled localization or installed translation package. The site admin can the choose the preferred date format for the site in general on the dashboard Settings General page. Any decent theme supports using the preferred date format on the front.

If you need help configuring your WordPress, please see the documentation at ​https://wordpress.org/documentation/article/settings-general-screen/ or use our support forums at ​https://wordpress.org/support/forums/

After configuring, no active plugins, where do you see American style dates? Please elaborate or provide a screenshot.