how to have date format as system short date in thunderbird

Hi :slight_smile:
following the instructions of this site
I put in .profile file in my home folder this:
export LANG=en_GB.UTF-8
export LC_TIME=en_DK
in the thunderbird email pane I get this date format:
2015-11-16 12:34 (year-monthnumber-day hour:minutes)
in my system I set the short date format as 2015-nov-16 12:34 (year-shortmonth-day hour:minutes) and it works well in dolphin.
so, I would like to have the 2015-nov-16 12:34 (year-shortmonth-day hour:minutes) date format also in thunderbird, how can I get this??
manythanks, ciao pier :slight_smile: