diff --git a/app/helpers/orbit_form_helper.rb b/app/helpers/orbit_form_helper.rb
index e7a2555e..05ffc2e5 100644
--- a/app/helpers/orbit_form_helper.rb
+++ b/app/helpers/orbit_form_helper.rb
@@ -34,8 +34,8 @@ module OrbitFormHelper
 
   def date_picker(object_name, method, options)
     custom = {}
-    custom[:format] = 'yyyy-MM-dd'
-    custom[:value] = display_date(options[:value]) if options[:value]
+    custom[:format] = options[:format] || 'yyyy/MM'
+    custom[:value] = format_value(options[:value], custom[:format]) if options[:value]
     custom[:picker_class] = 'date_picker'
     custom[:label] = options[:label] || I18n.t('datetime_picker.date.label')
     custom[:placeholder] = options[:placeholder] || I18n.t('datetime_picker.date.placeholder')
@@ -44,8 +44,8 @@ module OrbitFormHelper
 
   def default_picker(object_name, method, options)
     custom = {}
-    custom[:format] = 'yyyy-MM-dd hh:mm'
-    custom[:value] = display_date_time(options[:value]) if options[:value]
+    custom[:format] = options[:format] || 'yyyy/MM/dd hh:mm'
+    custom[:value] = format_value(options[:value], custom[:format]) if options[:value]
     custom[:picker_class] = 'default_picker'
     custom[:label] = options[:label] || I18n.t('datetime_picker.default.label')
     custom[:placeholder] = options[:placeholder] || I18n.t('datetime_picker.default.placeholder')
@@ -54,8 +54,8 @@ module OrbitFormHelper
 
   def time_picker(object_name, method, options)
     custom = {}
-    custom[:format] = 'hh:mm'
-    custom[:value] = display_time(options[:value]) if options[:value]
+    custom[:format] = options[:format] || 'hh:mm'
+    custom[:value] = format_value(options[:value], custom[:format]) if options[:value]
     custom[:picker_class] = 'time_picker'
     custom[:label] = options[:label] || I18n.t('datetime_picker.time.label')
     custom[:placeholder] = options[:placeholder] || I18n.t('datetime_picker.time.placeholder')
@@ -93,6 +93,10 @@ module OrbitFormHelper
     end
   end
 
+  def format_value(value, format)
+    value.strftime(format.gsub('yyyy', '%Y').gsub('MM', '%m').gsub('dd', '%d').gsub('hh', '%H').gsub('mm', '%M'))
+  end
+
 end
 
 module Orbit::FormBuilder
diff --git a/config/locales/picker.en.yml b/config/locales/picker.en.yml
index 999d9195..82121f6e 100644
--- a/config/locales/picker.en.yml
+++ b/config/locales/picker.en.yml
@@ -3,10 +3,10 @@ en:
   datetime_picker:
     date:
       label: Date
-      placeholder: "YYYY-MM-DD"
+      placeholder: "YYYY/MM/DD"
     default:
       label: Date and time
-      placeholder: "YYYY-MM-DD HH:MM"
+      placeholder: "YYYY/MM/DD HH:MM"
     separated:
       label: Date and time
     time:
diff --git a/config/locales/picker.zh_tw.yml b/config/locales/picker.zh_tw.yml
index 1bedaa99..f3fa6a0f 100644
--- a/config/locales/picker.zh_tw.yml
+++ b/config/locales/picker.zh_tw.yml
@@ -3,10 +3,10 @@ zh_tw:
   datetime_picker:
     date:
       label: 日期
-      placeholder: "YYYY-MM-DD"
+      placeholder: "YYYY/MM/DD"
     default:
       label: 日期和時間
-      placeholder: "YYYY-MM-DD HH:MM"
+      placeholder: "YYYY/MM/DD HH:MM"
     separated:
       label: 日期和時間
     time: