Rumphi時間からIbadan時間への変換
06:16:11
-1
05:16:11
+7
+7
+7
+7
+7
+6
+6
+6
+6
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+3
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+2
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+1
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-1
-1
-1
-1
-1
-1
-1
-2
-2
-5
-5
-5
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-6
-7
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-10