Conversão da hora de Batifa para a hora de Robertson
12:57:27
-1
11:57:27
+7
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+6
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+5
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-1
-1
-1
-1
-2
-2
-2
-2
-2
-2
-3
-6
-6
-6
-7
-7
-7
-8
-8
-9
-10