Ώρα Hạ Long
07:20:21
Ανατολή ηλίου: 06:11:17 
Η δυση του ηλιου: 17:56:2708:20:21
03:20:21
21:20:21
05:50:21
18:20:21
08:20:21
05:20:21
08:20:21
08:20:21
05:50:21
03:20:21
08:20:21
06:20:21
09:20:21
21:20:21
Διαφορά ώρας μεταξύ Hạ Long και μεγάλων πόλεων
+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