Derry時間
23:27:34
日出: 08:39:17 
日落: 16:02:1807:27:34
02:27:34
20:27:34
04:57:34
17:27:34
07:27:34
04:27:34
07:27:34
07:27:34
04:57:34
02:27:34
07:27:34
05:27:34
08:27:34
20:27:34
Derry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