Cairo時間からWalton-on-Thames時間への変換
14:43:30
-2
12:43:30
+7
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+6
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+5
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+2
+2
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+1
+0.5
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-1
-1
-1
-1
-2
-2
-2
-2
-2
-2
-3
-6
-6
-6
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-7
-7
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-10