I always use Date::Manip, it actually understands words like "today" and "yesterday": 
use Date::Manip;

my $today = UnixDate( ParseDate("today"), "%Y%m%d");
my $yesterday = UnixDate( ParseDate("yesterday"), "%Y%m%d");

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In reply to Re: Date Trickiness by johnnywang
in thread Date Trickiness by monger

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