Hạ Longの時間
19:29:18
日の出: 06:30:52 
日没: 17:28:5520:29:18
15:29:18
09:29:18
17:59:18
06:29:18
20:29:18
17:29:18
20:29:18
20:29:18
17:59:18
15:29:18
20:29:18
18:29:18
21:29:18
09:29:18
Hạ Longと主要都市の時差
+4
+4
+2
+2
+2
+2
+2
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+0
+0
+0
-1
-1
-1
-1
-2
-2
-3
-4
-4
-4
-4
-4
-4
-4
-5
-5
-5
-5
-6
-6
-6
-6
-6
-6
-6
-7
-7
-10
-10
-10
-10
-11
-12
-12
-12