diff --git a/lisp/org.el b/lisp/org.el
index e25194c..b4d2bd7 100755
--- a/lisp/org.el
+++ b/lisp/org.el
@@ -14981,7 +14981,8 @@ in the timestamp determines what will be changed."
       (setq time0 (org-parse-time-string ts))
       (when (and (eq org-ts-what 'minute)
 		 (eq current-prefix-arg nil))
-	(setq n (* dm (cond ((> n 0) 1) ((< n 0) -1) (t 0))))
+	(setq n (* dm (cond ((> n 0) (max (/ n dm) 1)) 
+			    ((< n 0) (min (/ n dm) -1)) (t 0))))
 	(when (not (= 0 (setq rem (% (nth 1 time0) dm))))
 	  (setcar (cdr time0) (+ (nth 1 time0)
 				 (if (> n 0) (- rem) (- dm rem))))))