Conversion de l'heure de Forest à l'heure de Tangshan
05:37:56
+6
11:37:56
+7
+7
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+3
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+2
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+1
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-1
-1
-1
-1
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-2
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-5
-5
-5
-5
-6
-6
-7
-7
-8
-9