Varash時間からKushtia時間への変換
19:45:39
+4
23:45:40
+7
+7
+7
+7
+7
+6
+6
+6
+6
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+2
+1.5
+1
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-1
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-1
-1
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-2
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-5
-5
-5
-5
-6
-7
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-7
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-10