Ώρα Porto
22:21:15
Ανατολή ηλίου: 07:17:30 
Η δυση του ηλιου: 18:17:5906:21:15
01:21:15
19:21:15
03:51:15
16:21:15
06:21:15
03:21:15
06:21:15
06:21:15
03:51:15
01:21:15
06:21:15
04:21:15
07:21:15
19:21:15
Διαφορά ώρας μεταξύ Porto και μεγάλων πόλεων
+7
+7
+7
+6.5
+6
+6
+6
+6
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5
+5
+4.5
+4
+3.5
+3
+3
+3
+3
+3
+3
+3
+2
+2
+2
+2
+1
+1
+1
+1
+1
+1
+0
+0
+0
-3
-3
-3
-3
-4
-5
-5
-5
-6
-8