Derry時間
12:15:47
日出: 07:21:00 
日落: 18:02:2720:15:47
15:15:47
09:15:47
17:45:47
06:15:47
20:15:47
17:15:47
20:15:47
20:15:47
17:45:47
15:15:47
20:15:47
18:15:47
21:15:47
09:15:47
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
+0
+0
+0
-3
-3
-3
-3
-4
-5
-5
-5
-6
-8