Timestamp of file installed
This is by default how Installshield creates msi media. Installshield will build the file table with the file added with the exact timestamp.
So in this example, msi will have files timed at 11/11/2015 3:56. When installed in different time zoned machines, the files will have the same 11/11/2015 3:56 time as that of timestamp of file added to ism and bulid to msi.