Usagara時間からIgbara-Odo時間への変換
18:38:04
-2
16:38:04
+6
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+2
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+1
+0.5
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-1
-1
-1
-1
-2
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-2
-2
-2
-2
-3
-3
-3
-6
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-9
-11