Zaxo時間からNew York City時間への変換
17:00:49
-8
09:00:49
+6
+6
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+5
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+1
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-1
-1
-1
-1
-2
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-2
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-2
-2
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-3
-3
-6
-6
-6
-6
-7
-8
-8
-8
-9
-11