Converting epoch time number to date/time

Hi

I am trying to change my epoch time back to a readable string to use in a plot. I have converted from a string to a number with the epoch of 01-01-1970 00:00:00 (dd-mm-yyyy HH:MM:SS)

I have an output such as 1470144960.

I have tried

datestr(1470144960,'dd.mm.yyyy HH:MM:SS')

 ans =  '09.03.5120 00:00:00'

This is not correct Any tips would be very helpful

Thanks

[aforb]

Nevermind I figured it out

datetime(1470144960, 'convertfrom','posixtime')