or download this
sub str2epoch {
my( $d, $m, $y, $H, $M, $S, $tz ) = $_[0] =~
m/^.... (\d\d) (...) (\d\d\d\d) (\d\d):(\d\d):(\d\d) ([+-]\d{4
+})/
...
(((($y-1970)*365 +$leaps+MONTHS->{$m}+($d-1))*24 +$H)*60 +$M)*60 +
+$S
- ($tz < 0 ? -1 : 1)*(substr($tz,1,2)*3600 + substr($tz,
+3)*60);
}