Czas Hạ Long
06:06:20
Wschód słońca: 06:30:18 
Zachód słońca: 17:26:1507:06:20
02:06:20
20:06:20
04:36:20
17:06:20
07:06:20
04:06:20
07:06:20
07:06:20
04:36:20
02:06:20
07:06:20
05:06:20
08:06:20
20:06:20
Różnica czasu między Hạ Long a większymi miastami
+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