 $$
 DECLARE
 BEGIN
-    NEW.last_update := now();
+    NEW.last_update := timezone('UTC'::text, now());
     RETURN NEW;
 END;
 $$;

    END IF;

    IF TG_OP = 'UPDATE' THEN
        NEW.last_update := now();
    END IF;
    RETURN NEW;
END;

    END IF;

    IF TG_OP = 'UPDATE' THEN
        NEW.last_update := timezone('UTC'::text, now());
    END IF;
    RETURN NEW;
END;
