Abidjan時間からGirardot City時間への変換
18:27:29
-5
13:27:29
+7
+7
+7
+6.5
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+6
+6
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+5.5
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+5.5
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+2
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+1
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+1
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+0
-3
-3
-3
-4
-4
-4
-5
-5
-6
-7