Riga時間からShijiazhuang時間への変換
15:49:40
+5
20:49:40
+7
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+6
+6
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+5
+5
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-1
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-1
-2
-2
-2
-2
-2
-2
-3
-6
-6
-6
-7
-7
-7
-8
-8
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-10