Cairo時間からPunaauia時間への変換
18:47:45
-13
05:47:45
+7
+7
+6
+6
+6
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+5
+5
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+2
+2
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+1
+0.5
+0
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-1
-1
-1
-1
-2
-2
-2
-2
-2
-2
-3
-6
-6
-6
-7
-7
-7
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-10