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Fastest way in PERL to  compare dates in the following form: YYYY-MM-DD hh:mm:ss

Posted on 2007-11-14
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Last Modified: 2012-08-14
How can you compare dates in PERL with the following date format:YYYY-MM-DD hh:mm:ss
For example: 06-10-26 13:00:06 is greater than 06-10-26 11:27:28
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Question by:angelsky
6 Comments
 
LVL 84

Accepted Solution

by:
ozo earned 30 total points
ID: 20279128
if( '06-10-26 13:00:06' gt '06-10-26 11:27:28' ){ print 'greater' }
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Expert Comment

by:Talmash
ID: 20279347
Y2K bug...
you noted YYYY and used YY...

another issue, moving to
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LVL 48

Expert Comment

by:Tintin
ID: 20282910
Your description and sample data don't match.  Which is correct?
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Author Comment

by:angelsky
ID: 20287159
Sorry my mistake...
 2006-10-26 13:00:06 is greater than 2006-10-26 11:27:28
Because "2006-10-26 13:00:06 " is later than "2006-10-26 11:27:28"
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Author Comment

by:angelsky
ID: 20287259
$dateA = "2006-10-26 13:00:06";
$dateB = "2006-10-26 11:27:28";

How can I say that dateA is after dateB?
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LVL 48

Assisted Solution

by:Tintin
Tintin earned 20 total points
ID: 20287281
As ozo has already shown

$dateA = "2006-10-26 13:00:06";
$dateB = "2006-10-26 13:27:28";

if ($dateA gt $dateB) {
  print "$dateA is later than $dateB\n";
}
else {
  print "$dateB is later than $dateA\n";
}
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