diff --git a/app/assets/javascripts/app/models/calendar.coffee b/app/assets/javascripts/app/models/calendar.coffee
index add3b4131..a50aa51a4 100644
--- a/app/assets/javascripts/app/models/calendar.coffee
+++ b/app/assets/javascripts/app/models/calendar.coffee
@@ -5,7 +5,7 @@ class App.Calendar extends App.Model
 
   @configure_attributes = [
     { name: 'name',           display: 'Name',            tag: 'input',    type: 'text', limit: 100, null: false },
-    { name: 'timezone',       display: 'Timezone',        tag: 'timezone', null: false }
+    { name: 'timezone',       display: 'Time zone',        tag: 'timezone', null: false }
     { name: 'business_hours', display: 'Business Hours',  tag: 'business_hours', null: true }
     { name: 'ical_url',       display: 'Holidays iCalendar Feed', tag: 'ical_feed', placeholder: 'http://example.com/public_holidays.ical', null: true }
     { name: 'public_holidays',display: 'Holidays',        tag: 'holiday_selector', null: true }
diff --git a/app/assets/javascripts/app/views/calendar/index.jst.eco b/app/assets/javascripts/app/views/calendar/index.jst.eco
index a22aa2311..949981e74 100644
--- a/app/assets/javascripts/app/views/calendar/index.jst.eco
+++ b/app/assets/javascripts/app/views/calendar/index.jst.eco
@@ -33,7 +33,7 @@
     </div>
     <% if calendar.last_log: %><div class="action-row"><div class="alert alert--danger"><%= calendar.last_log %></div></div><% end %>
     <div class="action-row">
-      <div class="label"><%- @T('Timezone') %></div> <%= calendar.timezone %>
+      <div class="label"><%- @T('Time zone') %></div> <%= calendar.timezone %>
     </div>
     <div class="action-block action-block--flex">
       <div class="label"><%- @T('Business Hours') %></div>
diff --git a/app/controllers/getting_started_controller.rb b/app/controllers/getting_started_controller.rb
index 48b30a26b..8b61226dd 100644
--- a/app/controllers/getting_started_controller.rb
+++ b/app/controllers/getting_started_controller.rb
@@ -43,6 +43,7 @@ curl http://localhost/api/v1/getting_started -v -u #{login}:#{password}
     end
 
     # return result
+    Calendar.init_setup(request.remote_ip)
     render json: {
       setup_done: setup_done,
       import_mode: Setting.get('import_mode'),
@@ -212,10 +213,7 @@ curl http://localhost/api/v1/getting_started -v -u #{login}:#{password}
   def setup_done_response
     return false if !setup_done
 
-    # get all groups
     groups = Group.where( active: true )
-
-    # get email addresses
     addresses = EmailAddress.where( active: true )
 
     render json: {
diff --git a/app/models/calendar.rb b/app/models/calendar.rb
index d91064d99..ffe2aa068 100644
--- a/app/models/calendar.rb
+++ b/app/models/calendar.rb
@@ -22,6 +22,11 @@ returns calendar object
 
   def self.init_setup(ip = nil)
 
+    # ignore client ip if not public ip
+    if ip && ip =~ /^(::1|127\.|10\.|172\.1[6-9]\.|172\.2[0-9]\.|172\.3[0-1]\.|192\.168\.)/
+      ip = nil
+    end
+
     # call for calendar suggestion
     calendar_details = Service::GeoCalendar.location(ip)
     return if !calendar_details
diff --git a/lib/service/geo_calendar/zammad.rb b/lib/service/geo_calendar/zammad.rb
index d4ce1d4ef..602203e9b 100644
--- a/lib/service/geo_calendar/zammad.rb
+++ b/lib/service/geo_calendar/zammad.rb
@@ -34,7 +34,7 @@ class Service::GeoCalendar::Zammad
 
       data = response.data
 
-      Cache.write( cache_key, data, { expires_in: 1.day } )
+      Cache.write( cache_key, data, { expires_in: 30.minutes } )
     rescue => e
       Rails.logger.error "#{host}#{url}: #{e.inspect}"
       Cache.write( cache_key, data, { expires_in: 1.minutes } )