DateTime::TimeZone: "No next span ..." error

[Boorstein, Daniel B]

In putting together a new machine I've installed the latest versions of
DateTime and DateTime::TimeZone. Code that was working (using DateTime
0.22, DateTime::TimeZone 0.30) is now failing. Example:

perl -MDateTime -e 'my $dt = DateTime->new(year => 2016, month => 5, day
=> 13, time_zone => "EST5EDT"); print $dt->ymd, "\n"'
No next span 2016 at
/mass/perl586/lib/site_perl/5.8.6/DateTime/TimeZone.pm line 243.

It's not clear to me why DST dates in 2016 are causing this problem,
while later years are not. Any suggestions on how to work around this?

Thanks,

 - Dan Boorstein