Konwersja czasu Tonghae do czasu Brits
06:18:40
-7
23:18:40
+2
+2
+0
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-1
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-1
-1
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-1
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-1
-1
-1
-1
-1
-1
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-1
-1
-1
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-1
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-1
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-2
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-8
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-9
-12
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-12