Baidoa時間からMexico City時間への変換
21:17:26
-9
12:17:26
+7
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+6
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+5
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+3
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+2.5
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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
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-6
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