Chuyển đổi thời gian từ Hakha sang giờ Diffa
18:59:01
-5.5
13:29:01
+4.5
+4.5
+2.5
+2.5
+2.5
+2.5
+2.5
+1.5
+1.5
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+1.5
+1.5
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+1.5
+0.5
+0.5
+0.5
+0
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-2
-3