diff --git a/ps/display.c b/ps/display.c
index 95a55c32..06094d3d 100644
--- a/ps/display.c
+++ b/ps/display.c
@@ -633,6 +633,7 @@ int main(int argc, char *argv[]){
   setlocale (LC_ALL, "");
   bindtextdomain(PACKAGE, LOCALEDIR);
   textdomain(PACKAGE);
+  setenv("TZ", ":/etc/localtime", 0);
 
 #ifdef DEBUG
   init_stack_trace(argv[0]);