Saint Petersburg 시간을 Kati 시간으로 변환
20:29:18
-3
17:29:18
+7
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+2
+2
+1.5
+1
+0.5
+0
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+0
+0
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-1
-1
-1
-1
-2
-2
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-2
-2
-3
-6
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