Arua 시간을 Kolkata 시간으로 변환
21:23:40
+2.5
23:53:40
+6
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+1
+0.5
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-1
-1
-1
-1
-2
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-2
-2
-2
-2
-2
-3
-3
-6
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-6
-6
-7
-8
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-8
-9
-11