From the command prompt, the script:
C:\>dir *.* /s > a.txt
will list all files in the TXT file (a.txt) which can then be opened in Notepad or another text editor. You can then search through the list for files modified within a timeframe (eg. today). For example, this question is written on 06 August 2015, so I can search for "06/08/2015". You can even improve that by looking for "06/08/2015 10" for files created after 10:00 today.
This works fine, but the file generated can very large (and takes a while to generate). Is it possible to do better (preferably, though not restricted to, from the command line).