e, an integer, if present, set the file modified time to this value
Consequences:
fileTime(s,e) sets the last modified time for the file s to e, and returns null if no error occurs
Outputs:
an integer, the last modified date of the file with name s
Description
The value is the number of seconds since 00:00:00 1970-01-01 UTC, the beginning of the epoch, so the number of seconds ago a file or directory was modified may be found by using the following code.