diff --git a/home_external/.bash_aliases b/home_external/.bash_aliases
index b38a588..bfab84a 100644
--- a/home_external/.bash_aliases
+++ b/home_external/.bash_aliases
@@ -6,6 +6,7 @@ fi
 DEFAULT_RSYNC='--info=ALL --recursive --delay-updates --human-readable --links --hard-links --perms'
 
 alias l='ls -l -v --all --human-readable --classify --group-directories-first' # -lvahF --group-directories-first
+alias lt=='l --time-style=long-iso'
 alias r='reset'
 alias ..='cd ..'
 alias refresh_bashrc='. ~/.bashrc' # alternatively: 'source ~/.bashrc'