East London時間からTarkwa時間への変換
22:50:16
-2
20:50:16
+7
+7
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+7
+7
+6
+6
+6
+6
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+2
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+1
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-1
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-1
-1
-1
-1
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-2
-2
-5
-5
-5
-5
-6
-7
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-7
-8
-10