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[me ~]$ perl datefail.pl --startday='-15 days' --endday='-14 days' Start with Today ... 20151101T01:51-0700 Strip the minutes 20151101T01:00-0700
#!/usr/bin/perl ... $zeroStartMDelta = new Date::Manip::Delta($zeroStartM); $dateObjStart = $dateObjStart->calc($zeroStartMDelta); print $dateObjStart->printf('%Y%m%dT%H:%M%z') . "\n";