Katumba時間からCeres時間への変換
17:48:45
-1
16:48:45
+7
+7
+6
+6
+6
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+5
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+2
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+1.5
+1
+0.5
+0
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-1
-1
-1
-1
-2
-2
-2
-2
-2
-2
-3
-6
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-7
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-10