Time Porto
23:00:33
Sunrise: 07:11:31 
Sunset: 18:22:4207:00:33
02:00:33
20:00:33
04:30:33
17:00:33
07:00:33
04:00:33
07:00:33
07:00:33
04:30:33
02:00:33
07:00:33
05:00:33
08:00:33
20:00:33
Time difference between Porto and major cities
+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