(mtime<hhmm)
Find files that were last modified on or before the time hhmm.
Usage: (mtime<hhmm)
 Where hh is the hour (00 to 23) and mm is the minute (00 to 59).
 
Use this function to find all files and folders that were last modified on or before a specific time.
It is possible to search for a specific range by using the (mtime>hhmm) function with this one;
To search for files created between 9:30am and 5:30pm (inclusive);
  (time>0930) (time<1730)
 
See Also
(time<hhmm), (time>hhmm) and (time=hhmm)
(atime<hhmm), (atime>hhmm) and (atime=hhmm)
(mtime>hhmm) and (mtime=hhmm)