Hạ Longの時間
16:09:11
日の出: 06:15:06 
日没: 17:54:2517:09:11
12:09:11
06:09:11
14:39:11
03:09:11
17:09:11
14:09:11
17:09:11
17:09:11
14:39:11
12:09:11
17:09:11
15:09:11
18:09:11
06:09:11
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
-7
-7
-7
-10
-10
-10
-10
-11
-12
-12
-12