Bug#877900: How to get 24-hour time on en_US.UTF-8 locale now?

[Roman Mamedov <rm@romanrm.net>]

So for those of us (the entire world), who have been relying on this behavior:

> * en_US (.UTF-8) is used as the default English locale for all places that
>   don't have a specific variant (and often even then).  Generally, technical
>   users use English as a system locale

How do we roll-back what you have done here, and still get en_US.UTF-8 while
retaining the proper 24-hour time?

dpkg-reconfigure locales does not list "C.UTF-8" in the main "locales to
generate" list, but does offer it on the next screen as "Default locale for the
system environment". After selecting it, we get:

# locale
LANG=C.UTF-8
LANGUAGE=
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_COLLATE="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8"
LC_MESSAGES="en_US.UTF-8"
LC_PAPER="en_US.UTF-8"
LC_NAME="en_US.UTF-8"
LC_ADDRESS="en_US.UTF-8"
LC_TELEPHONE="en_US.UTF-8"
LC_MEASUREMENT="en_US.UTF-8"
LC_IDENTIFICATION="en_US.UTF-8"
LC_ALL=en_US.UTF-8

But still:

# date
Thu 07 Feb 2019 09:53:47 AM UTC

-- 
With respect,
Roman