find -amin bug

[Dave Saunders]

Folks,
  I am trying to use the -amin option in 'find' to look at anything older
than 8 hours (480 mins).
  My command is:

        find . -name "somename" -amin +480 -print

But I keep coming up with nothing.


Looking at your docs, I see this:

 - Test: -amin N
 - Test: -cmin N
 - Test: -mmin N
     True if the file was last accessed (or its status changed, or it
     was modified) N minutes ago.  These tests provide finer
                   ^^^^^^^^^^^^^
     granularity of measurement than `-atime' et al.  For example, to
     list files in `/u/bill' that were last read from 2 to 6 hours ago:
                                                      ^^^^^^^^^^^^^^^^

          find /u/bill -amin +2 -amin -6

(The documentation is not consistent with respect to time units.)


When I use -amin +420 (7 hrs), I get the expected count.  When I use
-amin +480, I get no hits.

When I try '-amin +480 -amin -1440' (in the spirit of the example), I also
get no hits.

Dave Saunders
UVa