opening_hours.diff

diff --git a/lib/kviberg/common/opening_hours_entry.rb b/lib/kviberg/common/opening_hours_entry.rb
index 26d7912..56c6372 100644
--- a/lib/kviberg/common/opening_hours_entry.rb
+++ b/lib/kviberg/common/opening_hours_entry.rb
@@ -18,6 +18,20 @@ module Kviberg
         "#{day} #{opens} - #{closes}"
       end
 
+      def current_day?(time = Time.now)
+        dayOfWeek == time.strftime('%u').to_i
+      end
+
+      def open?(time = Time.now)
+        return false unless current_day? time
+
+        midnight = Time.new(time.year, time.month, time.day, 0, 0, 0)
+        from_time = midnight + from
+        to_time = midnight + to
+
+        time >= from_time && time < to_time
+      end
+
       private
 
       def formatted_duration(total_seconds)
diff --git a/test/lib/kviberg/common/opening_hours_entry_test.rb b/test/lib/kviberg/common/opening_hours_entry_test.rb
index 9e2c74f..e2f6a87 100644
--- a/test/lib/kviberg/common/opening_hours_entry_test.rb
+++ b/test/lib/kviberg/common/opening_hours_entry_test.rb
@@ -15,6 +15,35 @@ module Kviberg
         })
       end
 
+      def test_current_day
+        time = Time.new(2015, 12, 03)
+        assert entry.current_day?(time)
+
+        time = Time.new(2015, 12, 01)
+        refute entry.current_day?(time)
+      end
+
+      def test_open
+        entry.from = 36_000 # 10:00
+        entry.to = 72_000   # 20:00
+        entry.dayOfWeek = Kviberg::Common::DayOfWeek::TUESDAY
+
+        time = Time.new(2015, 12, 03, 10, 0)
+        refute entry.open?(time)
+
+        time = Time.new(2015, 12, 01, 9, 59)
+        refute entry.open?(time)
+
+        time = Time.new(2015, 12, 01, 10, 0)
+        assert entry.open?(time)
+
+        time = Time.new(2015, 12, 01, 19, 59)
+        assert entry.open?(time)
+
+        time = Time.new(2015, 12, 01, 20, 0)
+        refute entry.open?(time)
+      end
+
       def test_to_s
         assert_equal 'Th 9:16 am - 10:05 pm', entry.to_s