Converting characters back to Date and Time

DeaR useR,

I read an excel column in R having Date and time (written in the same cell) as follow,

06/18/18 10:00

06/18/18 11:00

06/18/18 12:00

In R environment, they are read as

43269.42

43269.46

43269.50

Is there a way to covert these characters back to the original format?

Thank-you very much in advance.


Eliza Botto