diff --git a/src/components/date-picker/panel/Time/time-range.vue b/src/components/date-picker/panel/Time/time-range.vue
index f4a65aa..bbbbf71 100644
--- a/src/components/date-picker/panel/Time/time-range.vue
+++ b/src/components/date-picker/panel/Time/time-range.vue
@@ -102,7 +102,7 @@
                 ];
             },
             showSeconds () {
-                return (this.format || '').indexOf('ss') !== -1;
+                return !(this.format || '').match(/mm$/);
             },
             leftDatePanelLabel () {
                 return this.panelLabelConfig(this.date);
diff --git a/src/components/date-picker/panel/Time/time.vue b/src/components/date-picker/panel/Time/time.vue
index 35a2688..0ae5046 100644
--- a/src/components/date-picker/panel/Time/time.vue
+++ b/src/components/date-picker/panel/Time/time.vue
@@ -69,7 +69,7 @@
         },
         computed: {
             showSeconds () {
-                return (this.format || '').indexOf('ss') !== -1;
+                return !(this.format || '').match(/mm$/);
             },
             visibleDate () { // TODO
                 const date = this.date;
--
libgit2 0.21.4