POSIX wrote:

: LC_TIME This variable shall determine the format and
: contents of date and time strings when the -v
: option is specified.

Developers took this wrong. LC_TIME specifies the locale
name, not the ``format'' argument of strftime().

Oops:
pax -w -f /tmp/foo /dev/null
LC_TIME=de_DE.ISO_8859-1 pax -v -f /tmp/foo