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$ perl -Mstrict -MRegexp::Common=time -MDateTime::Format::ISO8601 -wE +' my $str = "2018-03-01T110601Z"; ... eval {...} called at -e line 3 Regexp::Common: valid
$ perl -Mstrict -MRegexp::Common=time -MDateTime::Format::ISO8601 -wE +' my $str = "2018-03-01T11:06:01Z"; ... DateTime::Format: valid Regexp::Common: valid