เวลาในDumai
19:47:05
พระอาทิตย์ขึ้น: 06:26:36 
พระอาทิตย์ตก: 18:30:1020:47:05
15:47:05
09:47:05
18:17:05
06:47:05
20:47:05
17:47:05
20:47:05
20:47:05
18:17:05
15:47:05
20:47:05
18:47:05
21:47:05
09:47:05
ความแตกต่างของเวลาระหว่างDumaiกับเมืองใหญ่
+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