An alternative to Date::Manip is the Date::Calc module which also
provides hordes of date utility functions (and it is a C lib so it is
fairly quick).
#!/usr/bin/perl -w
use strict;
use Date::Calc qw/Day_of_Week/;
my @days = qw/Sunday Monday Tuesday Wednesday
Thursday Friday Saturday/;
my $dow = $days[ Day_of_Week(2002, 5, 25) ];
print "$dow\n";
__END__
Several have mentioned simple ways to do it yourself, but if you
need more date manipulation than your post suggests (things like
differences between dates, business days, etc), I recommend checking
out one of the modules -- it isn't hard to work with dates, but it
isn't hard to work with dates incorrectly either :-)
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