เวลาในLạng Sơn
15:09:42
พระอาทิตย์ขึ้น: 06:33:53 
พระอาทิตย์ตก: 17:29:5416:09:43
11:09:43
05:09:43
13:39:43
02:09:43
16:09:43
13:09:43
16:09:43
16:09:43
13:39:43
11:09:43
16:09:43
14:09:43
17:09:43
05:09:43
ความแตกต่างของเวลาระหว่างLạng Sơnกับเมืองใหญ่
+4
+4
+2
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+2
+2
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+1
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+1
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+1
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+1
+1
+1
+1
+0
+0
+0
-1
-1
-1
-1
-2
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-4
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