Dilling時間からNew York City時間への変換
15:07:13
-7
08:07:13
+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
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-1
-1
-1
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-2
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-5
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-6
-7
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-10