Thanks a lot for my missing comment.

On openbsd system, typed the command:

SD_OCC1# openssl x509 -in /etc/isakmpd/certs/local.crt -noout -dates (enter!)

notBefore=Nov 23 22:31:12 2019 GMT

notAfter=Mar 19 06:52:23 2020 GMT

At thie point, I hope to change the GMT to current my contry time zone(KST).

Thanks in advance,

And followings are code changed by your recommendation.

my %MONTH_NAMES = ( "Jan" => '01',  "Feb"=> '02',  "Mar" => '03', "Apr
+"=> '04',"May" => '05',  "Jun" => '06', "Jul" => '07', "Aug" => '08',
+  "Sep" => '09', "Oct" => '10', "Nov" => '11', "Dec" => '12' );

[download]
 if(m/notBefore/) {
   chomp; ($notB1, $notB2) = split('=', $_);
   $notB2 =~ tr/:/ /;
   my($mon,$mday,$hour,$minute,$sec,$year)=split(/ /,$notB2);
   #print $mon, $mday, $hour, $minute, $sec, $year;
   $time_1 = timelocal($sec,$minute,$hour,$mday,$MONTH_NAMES{$mon},$ye
+ar);
   print $MONTH_NAMES{$mon};
 }

[download]

2020-01-09 Athanasius fixed long code line.

In reply to Re^4: date and time difference by invisiblehand
in thread date and time difference by invisiblehand

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