Sovetsk時間からSurat時間への変換
13:19:37
+2.5
15:49:37
+6
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+1
+0.5
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-1
-1
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-2
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-2
-2
-2
-2
-2
-3
-3
-6
-6
-6
-6
-7
-8
-8
-8
-9
-11