Conversione dell'ora da Boyarka a Chattogram
16:47:49
+4
20:47:49
+7
+7
+7
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+6
+6
+6
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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