East London時間からGualeguay時間への変換
10:10:52
-5
05:10:52
+7
+7
+7
+7
+7
+6
+6
+6
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+3
+3
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+2
+1.5
+1
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+0
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-1
-1
-1
-1
-1
-1
-1
-2
-2
-5
-5
-5
-5
-6
-7
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-7
-8
-10