Czas Hạ Long
05:00:38
Wschód słońca: 05:33:00 
Zachód słońca: 18:15:4206:00:38
01:00:38
19:00:38
03:30:38
16:00:38
06:00:38
03:00:38
06:00:38
06:00:38
03:30:38
01:00:38
06:00:38
04:00:38
07:00:38
19:00:38
Różnica czasu między Hạ Long a większymi miastami
+3
+3
+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
-4
-4
-5
-5
-5
-5
-6
-6
-6
-6
-6
-6
-7
-10
-10
-10
-11
-11
-11
-12
-12