Alexandria時間からDownsview-Roding-CFB時間への変換
15:00:11
-7
08:00:11
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+2
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+1.5
+1
+0.5
+0
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-1
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-1
-1
-2
-2
-2
-2
-2
-2
-3
-6
-6
-6
-6
-7
-7
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-10