Midstream時間からRiyadh時間への変換
10:58:10
+1
11:58:10
+7
+7
+7
+7
+7
+6
+6
+6
+6
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+3
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+2.5
+2
+1.5
+1
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+1
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-1
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-1
-1
-1
-1
-1
-2
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-5
-5
-5
-5
-6
-7
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-7
-8
-10