Conversão da hora de Twante para a hora de Diffa
21:14:57
-5.5
15:44:57
+4.5
+4.5
+2.5
+2.5
+2.5
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+0.5
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+0.5
+0
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-2
-3