David時間
21:29:39
日出: 06:45:16 
日落: 18:40:4410:29:39
05:29:39
23:29:39
07:59:39
20:29:39
10:29:39
07:29:39
10:29:39
10:29:39
07:59:39
05:29:39
10:29:39
08:29:39
11:29:39
23:29:39
David與主要城市的時差
+7
+7
+7
+7
+6
+6
+6
+6
+6
+6
+5
+5
+5
+2
+2
+2
+2
+1
+0
+0
+0
-1
-3