date and time

config.h

@@ -65,5 +65,5 @@ static const char unknown_str[] = "n/a";
  */
 static const struct arg args[] = {
 	/* function      format            argument */
-	{ datetime, "%s",           "%F %T" },
+	{ datetime,      "%s",             "%Y-%m-%d %k:%M" },
 };