QOL and TZ fix

app/controllers/activities_controller.rb

   # GET /groups/:id/activities
   # GET /activities.json
   def index
-    @activities = @group.activities.paginate(page: params[:page], per_page: 5)
+    @activities = @group.activities
+      .where('start > ?', Time.now)
+      .order(start: :asc)
+      .paginate(page: params[:page], per_page: 25)
   end
 
   # GET /activities/1

app/models/activity.rb

 
       sd            = Date.strptime(row['start_date'])
       st            = Time.strptime(row['start_time'], '%H:%M')
-      a.start       = DateTime.new(sd.year, sd.month, sd.day, st.hour, st.min)
+      a.start       = Time.zone.local(sd.year, sd.month, sd.day, st.hour, st.min)
 
       if not row['end_date'].blank?
         ed          = Date.strptime(row['end_date'])
         et          = Time.strptime(row['end_time'], '%H:%M')
-        a.end       = DateTime.new(ed.year, ed.month, ed.day, et.hour, et.min)
+        a.end       = Time.zone.local(ed.year, ed.month, ed.day, et.hour, et.min)
       end
 
       dd            = Date.strptime(row['deadline_date'])
       dt            = Time.strptime(row['deadline_time'], '%H:%M')
-      a.deadline    = DateTime.new(dd.year, dd.month, dd.day, dt.hour, dt.min)
+      a.deadline    = Time.zone.local(dd.year, dd.month, dd.day, dt.hour, dt.min)
 
       result << a
     end