datetime format

Using Django Templates & Frontend
10

There was a change in the docs between 4.2 and 5.0 that may explain your situation.

In 4.2, DATETIME_FORMAT:

Note that if USE_L10N is set to True , then the locale-dictated format has higher precedence and will be applied instead.

Since the USE_L10N setting was removed in 5.0, the docs now read:

Note that the locale-dictated format has higher precedence and will be applied instead.

(In other words, locale-defined formats always take precedence.)

This means that you either need to change the locale format, or specifically use this format in the template.