Hello Leonard, and thanx for the info.

 BB>> For recording midifiles to MidiDisks...
 BB>> I need to time 74 minutes or 148 minutes or a specified number of
 BB>> minutes.
 BB>> If I start too close to 24:00 hours, the day rollover breaks
 BB>> my btm. So I'm trying to use %{at}fileage.

 LE> Fileage just converts the bitmapped date/time fields in the
 LE> directory entry into an integer. So it jumps all over the place.
 LE> It's *not* suitable for timing.

     So that's what {at}fileage is doing :-)
     I now remember the thread on uptime, so I could adapt this:

:UP
if not exist c:\uptime.tck (echo c:\uptime.tck missing - aborting.^quit 1)
set age=%{at}eval[86400 * (%{at}date[] - %{at}date[%{at}filedate[c:\uptime.tck]])...
... + %{at}time[%_time] - %{at}time[%{at}filetime[c:\uptime.tck]]]
set mins=%{at}eval[%age% %% 3600 \ 60]
set hours=%{at}eval[%age\3600]
echo Session age: %hours Hours, %mins Minutes
quit %hours

Regards, Barry 

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