TAR by file creation date and extraction of a file by its file name

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http://askubuntu.com – Obviously, there are a lot of web pages on TAR out there. However, I have not been able to find a suitable Google query to determine if what I want is even possible. I have found items such as: http://stackoverflow.com/questions/848293/shell-script-get-all-files-mod... but this is set to archive files newer than a certain date not older than a certain date. Long story short, I have several automation tools that generate data files and log files every 5 minutes. The data files are named using php's md5 function so they are a 32 char string. The log files vary in their naming conv (HowTos)