Al Ḩudaydah時間からZerbst時間への変換
21:42:55
-1
20:42:55
+7
+7
+6
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+6
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+6
+5
+5
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+2.5
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+2
+2
+1.5
+1
+0.5
+0
+0
+0
+0
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-1
-1
-1
-1
-2
-2
-2
-2
-2
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-3
-6
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