Hi Matthew, > when I look at an email such as in thunderbird, the time and date are > given 24 hour format for example, 2019/14/09 11:00 rather than the u.s > format I am used to. What is the output of the locale(1) command? Also, this page may be of help. http://kb.mozillazine.org/Change_the_Date_Format#Configuring_the_date.2Ftime_system_settings_on_your_computer -- Cheers, Ralph.