diff --git a/app/assets/javascripts/app/controllers/_ui_element/date.coffee b/app/assets/javascripts/app/controllers/_ui_element/date.coffee
index feae1ab1e..79320e14b 100644
--- a/app/assets/javascripts/app/controllers/_ui_element/date.coffee
+++ b/app/assets/javascripts/app/controllers/_ui_element/date.coffee
@@ -23,6 +23,7 @@ class App.UiElement.date
     if attribute.value
       startDate = new Date(attribute.value)
     item.find('.js-datepicker').datepicker(
+      weekStart: 1
       autoclose: true
       todayBtn: 'linked'
       todayHighlight: true
diff --git a/app/assets/javascripts/app/controllers/_ui_element/datetime.coffee b/app/assets/javascripts/app/controllers/_ui_element/datetime.coffee
index e38f2217d..9419a5e17 100644
--- a/app/assets/javascripts/app/controllers/_ui_element/datetime.coffee
+++ b/app/assets/javascripts/app/controllers/_ui_element/datetime.coffee
@@ -23,6 +23,7 @@ class App.UiElement.datetime
     if attribute.value
       startDate = new Date(attribute.value)
     item.find('.js-datepicker').datepicker(
+      weekStart: 1
       autoclose: true
       todayBtn: 'linked'
       todayHighlight: true