Here are 2 ways of converting UnixTime in date objects:
unixTime = Range[100000];
(1) dates = FromUnixTime /@ unixTime;
(2) dates = DateObject /@ Table[{1970, 1, 1, 2, 0, unixTime[[i]]}, {i, Length[unixTime]}];
The first method takes about 3.5 min and the second about 2 sec.
I am wondering then, what's the point in having FromUnixTime[]?
