Answers

2016-04-15T20:27:21+05:30
Maybe because they are born in different places, in different time zones.
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2016-04-16T11:55:06+05:30
One must be born just on the western side of the International Date Line and the other must have been born just on the eastern side.

Due to this, there occurs a difference of 24 hours (i.e. 1 day) between their births, even though they are born at the same moment.
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