Heure à Dumai
03:09:19
Lever du soleil: 06:19:25 
Coucher de soleil: 18:21:2004:09:19
23:09:19
17:09:19
01:39:19
14:09:19
04:09:19
01:09:19
04:09:19
04:09:19
01:39:19
23:09:19
04:09:19
02:09:19
05:09:19
17:09:19
Décalage horaire entre Dumai et les grandes villes
+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