Timestamp of file upload


Does anyone know if it possible to find the last modified time of a
file that has just been uploaded.
I.e. I save a file on my computer at Friday 4th July 1.40pm. I then
upload this file 1 hour later. I have tried


but this only returns the timestamp of when the file was saved as a
temp file (i.e. 2.40pm). Is it possible to find the original last
modified time (1.40pm)

Hope someone can help