Nar'yan-Mar時間からCasablanca時間への変換
20:13:57
-2
18:13:57
+7
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+2
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+1.5
+1
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-1
-1
-1
-1
-2
-2
-2
-2
-2
-2
-3
-6
-6
-6
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-7
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-10