การแปลงเวลาDerryเป็นเวลา‘Ar‘ara
11:37:59
+2
13:37:59
+7
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+5.5
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+5.5
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+3
+3
+3
+3
+3
+3
+3
+2
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+1
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+0
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-3
-3
-3
-3
-4
-5
-5
-5
-6
-8