diff --git a/vue-datepicker-1.vue b/vue-datepicker-1.vue
index c9d5978..9cedd8e 100644
--- a/vue-datepicker-1.vue
+++ b/vue-datepicker-1.vue
@@ -560,7 +560,7 @@ exports.default = {
       this.showDay(next);
     },
     showDay: function showDay(time) {
-      if (time === undefined || !Date.parse(time)) {
+      if (time === undefined || !(0, _moment2.default)(time, this.option.format).isValid()) {
         this.checked.currentMoment = (0, _moment2.default)();
       } else {
         this.checked.currentMoment = (0, _moment2.default)(time, this.option.format);
diff --git a/vue-datepicker-es6.vue b/vue-datepicker-es6.vue
index 022d0ef..8521ef5 100644
--- a/vue-datepicker-es6.vue
+++ b/vue-datepicker-es6.vue
@@ -490,7 +490,7 @@ export default {
       this.showDay(next)
     },
     showDay (time) {
-      if (time === undefined || !Date.parse(time)) {
+      if (time === undefined || !moment(time, this.option.format).isValid()) {
         this.checked.currentMoment = moment()
       } else {
         this.checked.currentMoment = moment(time, this.option.format)
diff --git a/vue-datepicker.es6-1.vue b/vue-datepicker.es6-1.vue
index b7c2248..c95f3a5 100644
--- a/vue-datepicker.es6-1.vue
+++ b/vue-datepicker.es6-1.vue
@@ -543,7 +543,7 @@ export default {
       this.showDay(next)
     },
     showDay (time) {
-      if (time === undefined || !Date.parse(time)) {
+      if (time === undefined || !moment(time, this.option.format).isValid()) {
         this.checked.currentMoment = moment()
       } else {
         this.checked.currentMoment = moment(time, this.option.format)