Saint Petersburg 시간을 Plottier 시간으로 변환
15:37:32
-6
09:37:32
+7
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+2.5
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+2
+2
+1.5
+1
+0.5
+0
+0
+0
+0
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-1
-1
-1
-1
-2
-2
-2
-2
-2
-2
-3
-6
-6
-6
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-10