Severnyy時間からClacton-on-Sea時間への変換
11:57:01
-3
08:57:01
+6
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+5
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+3
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+2
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+1.5
+1
+0.5
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-1
-1
-2
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-2
-2
-2
-2
-2
-3
-3
-6
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-10