Time zone formatting not respected on the front-end

Time format, as specified at Settings -> General in the WordPress dashboard, is not correctly used in the front-end.

Specifically, while one can specify the time zone abbreviation (e.g., EST) in the format string, the output includes the UTC offset instead.

Specifying the following time format:

`g:i a T`

under Settings -> General produces an output like: "1:00pm -05:00", instead of the expected: "1:00pm EST"

The issue happens on both .com (only when front-end editing is enabled in Theme Options) and self-hosted WordPress sites (when o2 plugin is activated).

No files, tests, or entry points are named. Reproduce the issue with the specified `g:i a T` format in both front-end editing contexts, then trace the front-end time-formatting path; done means the output uses the configured abbreviation, such as `1:00pm EST`, rather than the UTC offset.

Written by the indexing model from the issue text.