Conversão da hora de Dondo para a hora de Chattogram
18:31:16
+4
22:31:16
+7
+7
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+6
+6
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+1
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-1
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-1
-1
-1
-1
-1
-2
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-5
-5
-5
-5
-6
-7
-7
-7
-8
-10