Beefy Boxes and Bandwidth Generously Provided by pair Networks
Just another Perl shrine
 
PerlMonks  

Re^3: Date and time difference

by mjscott2702 (Pilgrim)
on Nov 17, 2010 at 12:41 UTC ( #871989=note: print w/ replies, xml ) Need Help??


in reply to Re^2: Date and time difference
in thread Date and time difference

Well, if you can't install any CPAN modules, you could use a module that comes bundled with perl, namely POSIX. The below example code shows how to create a calendar time for December 12, 1995, at 10:30 am:

$time_t = POSIX::mktime( 0, 30, 10, 12, 11, 95 ); print "Date = ", POSIX::ctime($time_t);

Presumably you could create 2 calendar times and subtract one from the other using difftime, which will give you the difference in seconds - format as required for display.

UPDATE (small example):

use strict; use warnings; use POSIX qw(mktime difftime ctime); my $previous = '10111623'; my $current = '10111705'; my $time1 = mktime( 0, 0, $4, $3, $2 - 1, $1 + 100 ) if $previous =~ m +/(\d\d)(\d\d)(\d\d)(\d\d)/; my $time2 = mktime( 0, 0, $4, $3, $2 - 1, $1 + 100 ) if $current =~ m/ +(\d\d)(\d\d)(\d\d)(\d\d)/; printf("%s - %s = %d seconds\n", ctime($time2), ctime($time1), difftim +e($time2, $time1));

Output:

Wed Nov 17 05:00:00 2010 - Tue Nov 16 23:00:00 2010 = 21600 seconds


Comment on Re^3: Date and time difference
Select or Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://871989]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others studying the Monastery: (6)
As of 2014-12-26 03:57 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    Is guessing a good strategy for surviving in the IT business?





    Results (165 votes), past polls