Ώρα Ridderkerk
12:10:31
Ανατολή ηλίου: 07:47:53 
Η δυση του ηλιου: 18:02:5219:10:32
14:10:32
08:10:32
16:40:32
05:10:32
19:10:32
16:10:32
19:10:32
19:10:32
16:40:32
14:10:32
19:10:32
17:10:32
20:10:32
08:10:32
Διαφορά ώρας μεταξύ Ridderkerk και μεγάλων πόλεων
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+6
+6
+6
+5.5
+5
+5
+5
+5
+4.5
+4.5
+4.5
+4.5
+4.5
+4.5
+4.5
+4.5
+4.5
+4.5
+4
+4
+3.5
+3
+2.5
+2
+2
+2
+2
+2
+2
+2
+1
+1
+1
+1
+0
+0
+0
+0
+0
+0
-1
-1
-1
-4
-4
-4
-4
-5
-6
-6
-6
-7
-9