diff --git a/app/views/admin/announcements/_form.html.erb b/app/views/admin/announcements/_form.html.erb
index d0e7135..c8a001b 100644
--- a/app/views/admin/announcements/_form.html.erb
+++ b/app/views/admin/announcements/_form.html.erb
@@ -41,14 +41,14 @@
       <div class="control-group">
         <label class="control-label muted"><%= t(:start_date) %></label>
         <div class="controls">
-          <%= f.datetime_picker :postdate, :no_label => true, :new_record => @bulletin.new_record? %>
+          <%= f.datetime_picker :postdate, :no_label => true, :new_record => @bulletin.new_record?, :data=>{"picker-type" => "range", "range" => "start"} %>
         </div>
       </div>
 
       <div class="control-group">
         <label class="control-label muted"><%= t(:end_date) %></label>
         <div class="controls">
-          <%= f.datetime_picker :deadline, :no_label => true, :new_record => @bulletin.new_record?  %>
+          <%= f.datetime_picker :deadline, :no_label => true, :new_record => @bulletin.new_record?, :data=>{"picker-type" => "range", "range" => "end"}  %>
         </div>
       </div>