การแปลงเวลาDiffaเป็นเวลาPort Blair
18:23:00
+4.5
22:53:00
+7
+7
+7
+7
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+7
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+6
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+5.5
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+5
+5
+5
+4.5
+4.5
+4.5
+4.5
+4.5
+4.5
+4.5
+4.5
+4.5
+4.5
+4
+4
+3.5
+3
+2.5
+2
+2
+2
+2
+2
+2
+2
+1
+1
+1
+1
+0
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+0
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+0
-1
-1
-4
-4
-4
-4
-5
-6
-6
-6
-7
-9