Jeddah時間からBristol時間への変換
15:49:03
-3
12:49:03
+6
+6
+6
+6
+6
+5
+5
+5
+5
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+3
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+2.5
+2.5
+2
+2
+1.5
+1
+0.5
+0
+0
+0
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+0
+0
-1
-1
-1
-1
-2
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-2
-2
-2
-2
-3
-3
-6
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-11