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Cron script not producing same date output when run manually

adamshields asked
Last Modified: 2013-12-26
The following commands are part of a script. When run from a cron task I get a different output for the date.

From user of BASH -rw-r--r-- 1 user user 199M 2010-05-10 06:00 /home/user/backups.tar.gz
From cron user of SH -rw-r--r-- 1 user user 199M May 10 06:00 /home/user/backups.tar.gz

The consistencies in the date formatting are a problem for the script. Is there a way to force ls to produce a specific date string such as the first one regardless of the shell or user?
/usr/bin/find / -type f -size +20M -exec /bin/ls -lh {} \; 2> /dev/null | /usr/bin/awk '{ print $8 ": " $5 }' >> /tmp/update2.log

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