Roman時間からBogotá時間への変換
+6
+6
+6
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+6
+5
+5
+5
+5
+5
+5
+5
+5
+5
+5
+5
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+3
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+3
+3
+2.5
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+2.5
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+2.5
+2.5
+2.5
+2
+2
+1.5
+1
+0.5
+0
+0
+0
+0
+0
+0
+0
-1
-1
-1
-1
-1
-1
-2
-2
-2
-2
-2
-3
-3
-6
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-6
-6
-7
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-10