Falmouth時間からBangkok時間への変換
12:31:39
+7
19:31:39
+7
+7
+7
+6.5
+6
+6
+6
+6
+5.5
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+2
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+1
+1
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+1
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+0
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-3
-3
-3
-3
-4
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-5
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-6
-7