Sat Mar 14 10:14:05 EDT 2015
  3/14/2015 10:14:05 -0400
  14/Mar/15 10:14:05
  14 Mar 15 10:14:05

  use Date::Parse;
  my $local_time = "Sat Mar 14 10:14:05 EDT 2015";
  # 1426342445 will be stored in $unix_time
  my $unix_time = str2time($local_time);

  use Date::Parse;
  use Date::Language;
  my $lang = Date::Language->new('French');
  my $unix_time = $lang->str2time("12:14:05, Ago 16, 2014 (CEST)");

  # $sec, $min, $hour: 秒,分,时
  # $mday: 月中的某天 (0-31)
  # $mon: 月份，范围 0 (一月) 至 11 (十二月)
  # $year: 年份，与1900年的差值(2015年为2015-1900=115)
  # $wday: 星期，范围 0 (星期天) 至 6 (星期六)
  # $yday: 年中的某天，范围 0 至 364 (或 365 闰年)
  # $isdst: 是否是夏令时
  my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst) = localtime($unix_timestamp);
  # necessary conversion of $mon and $year
  $mon += 1;
  $year += 1900;
  print "Current time: $year-$mon-$mday $hour:$min:$sec\n";