Ώρα Ridderkerk
01:37:56
Ανατολή ηλίου: 07:39:37 
Η δυση του ηλιου: 18:10:1108:37:56
03:37:56
21:37:56
06:07:56
18:37:56
08:37:56
05:37:56
08:37:56
08:37:56
06:07:56
03:37:56
08:37:56
06:37:56
09:37:56
21:37:56
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