Hello Monks,

i have a question here regarding to calculate the minutes difference between two dates. i have written a code here, but i know it's not very accurate, because i assume every month is 30 days and 365 days in a year (it goes very wrong when calculate the dates for example: 2007-12-31 16:50:00;2008-1-1 04:24:00;), anyone know there is a perl module can calculate the accurate minuets between two dates ?

#!/usr/bin/perl
use strict;
use warnings;

#Using perl package
use Date::Calc qw(Delta_YMDHMS);       
use Date::Calc qw(Add_Delta_DHMS);     

#subroutine: rounding no
sub round($);                          

while (<TEMP>) 
{

  my @line=split(";");
  my @start_time=($line[3]=~/(\d+)-(\d+)-(\d+)\s(\d+):(\d+):(\d+)/);  
+ #parsing the start time
  my @stop_time=($line[4]=~/(\d+)-(\d+)-(\d+)\s(\d+):(\d+):(\d+)/);   
+ #parsing the stop time
    my @diff=Delta_YMDHMS(@start_time,@stop_time);                    
+                                   #calculate diff in YMDHMS
   my($yyyy,$m,$d,$hh,$mm,$ss)=@diff;
  $min_diff=($yyyy*365*24*60+$m*30*24*60+$d*24*60+$hh*60+$mm*1+$ss*0);
+                     #convert to mins
  $interval=round($min_diff/15);                                      
+                              #get the interval
  print "minutes difference between two dates are: $min_diff";
}


sub round($) {
    my($number) = shift;
    return int($number + .5);
}

[download]
thanks,

In reply to Find minutes difference between two dates by hujunsimon

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