Najrān時間からOyama時間への変換
06:51:06
+6
12:51:06
+6
+6
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+1.5
+1
+0.5
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-1
-1
-1
-1
-2
-2
-2
-2
-2
-2
-2
-3
-3
-6
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-8
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-8
-9
-11