Ώρα Ridderkerk
07:42:09
Ανατολή ηλίου: 06:42:50 
Η δυση του ηλιου: 20:44:2313:42:09
08:42:09
02:42:09
11:12:09
23:42:09
13:42:09
10:42:09
13:42:09
13:42:09
11:12:09
08:42:09
13:42:09
11:42:09
14:42:09
02:42:09
Διαφορά ώρας μεταξύ Ridderkerk και μεγάλων πόλεων
+7
+7
+7
+7
+7
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
+5
+5
+5
+4.5
+4
+4
+4
+4
+3.5
+3.5
+3.5
+3.5
+3.5
+3.5
+3.5
+3.5
+3.5
+3.5
+3
+3
+2.5
+2
+1.5
+1
+1
+1
+1
+1
+1
+1
+1
+1
+0
+0
+0
+0
-1
-1
-1
-1
-1
-1
-2
-5
-5
-5
-6
-6
-6
-7
-7
-8
-9