Re: Comparing timestamps that are in 2 different but defined styles

POSIX::strptime look promising. Something like this (untested)

use POSIX::strptime;
my $timestamp = "2010-07-23 19:44:43.523";
#remove milliseconds
$timestamp =~ s/\.\d+$//;

my ($t_sec, $t_min, $t_hour, $t_mday, $t_mon, $t_year, $t_wday, $t_yda
+y) = POSIX::strptime($timestamp, "%Y-%m-%d %H:%M:%S");

my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) =
   localtime(time);

if($t_year == $year && $t_mon == $mon && $t_mday == $mday &&
   $t_hour == $hour && abs($t_min-$min) <= 1){
#dates match
}

[download]

Comment on Re: Comparing timestamps that are in 2 different but defined styles Download Code

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Re^2: Comparing timestamps that are in 2 different but defined styles by apl (Monsignor) on Jul 24, 2010 at 12:01 UTC
Concept is great, but OP just has to be careful when implementing it, as edge conditions always bite us. 8:59:01 compared to 9:00:00 is less than a minute to my eye, but wouldn't pass the generally correct test. Similar problem with 9:00:59 and 9:01:01, when you're comparing seconds ...	[reply]
Re^2: Comparing timestamps that are in 2 different but defined styles by AnomalousMonk (Chancellor) on Jul 24, 2010 at 01:04 UTC
`if($t_year == $year && $t_mon == $mon && $t_mday == $mday && $t_hour == $hour && abs($t_min-$min) <= 1){ ... }` [download] How about ten seconds before the hour/day/etc versus ten seconds after: Are these two times within 60 seconds of each other per this test?	[reply] [d/l]
Re^2: Comparing timestamps that are in 2 different but defined styles by thunders (Priest) on Jul 28, 2010 at 19:52 UTC
Doh, good point guys. I wasn't thinking. Here's another option: turn the values returned by POSIX::strptime into a UNIX epoch with Time::Local, then subtracting that from the value given by time() and seeing if abs($diff) < 60.	[reply]


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