Douai時間からDongguan時間への変換
16:11:14
+6
22:11:14
+7
+7
+7
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+6
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+6
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+3
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+1
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-1
-1
-1
-1
-1
-1
-2
-5
-5
-5
-5
-6
-6
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-8
-9