Purmerend時間からSingapore時間への変換
14:57:49
+6
20:57:49
+7
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+3.5
+3.5
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+3
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+2
+1.5
+1
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+1
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-1
-1
-1
-1
-1
-1
-2
-5
-5
-5
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-9