Porto時間
19:05:39
日出: 07:54:46 
日落: 17:36:0903:05:39
22:05:39
16:05:39
00:35:39
13:05:39
03:05:39
00:05:39
03:05:39
03:05:39
00:35:39
22:05:39
03:05:39
01:05:39
04:05:39
16:05:39
Porto與主要城市的時差
+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
+1
+0
+0
-3
-3
-3
-3
-4
-5
-5
-5
-6
-8