Umarkot時間からPyongyang時間への変換
17:47:12
+4
21:47:12
+5
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+4
+4
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+3
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+0
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-1
-2
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-2
-2
-2
-2
-2
-2
-2
-3
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-3
-4
-4
-4
-4
-4
-4
-5
-8
-8
-8
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-12