Sitampiky時間からNew York City時間への変換
17:46:20
-7
10:46:20
+7
+7
+6
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+5
+5
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+3
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+2.5
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+2.5
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+2
+2
+1.5
+1
+0.5
+0
+0
+0
+0
+0
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+0
+0
-1
-1
-1
-1
-2
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-2
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-2
-2
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-6
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-10