Ώρα Hạ Long
04:40:20
Ανατολή ηλίου: 06:30:44 
Η δυση του ηλιου: 17:35:3805:40:20
00:40:20
18:40:20
03:10:20
15:40:20
05:40:20
02:40:20
05:40:20
05:40:20
03:10:20
00:40:20
05:40:20
03:40:20
06:40:20
18:40:20
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
-6
-7
-7
-10
-10
-10
-10
-11
-12
-12
-12