Maych’ew時間からWest Chester時間への変換
07:46:34
-7
00:46:34
+7
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+5
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+2
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+1.5
+1
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+0
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-1
-1
-1
-1
-2
-2
-2
-2
-2
-2
-3
-6
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-6
-7
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-7
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-10