Conversion de l'heure de Richmond à l'heure de Rio de Janeiro
23:01:30
-5
18:01:30
+7
+7
+7
+7
+7
+6
+6
+6
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+3
+3
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+2
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+1
+1
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-1
-1
-1
-1
-1
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-2
-5
-5
-5
-6
-6
-6
-7
-7
-8
-9