Grande-Synthe時間からLondon時間への変換
00:22:39
-1
23:22:39
+7
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+4.5
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+3.5
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+3
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+2.5
+2
+1.5
+1
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+0
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+0
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-1
-1
-1
-1
-1
-1
-2
-5
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