Thanks to Corion, I managed to do it. Here is what I needed to get an Excel format timestamp (I added some comment, to make it easier to understand) :

# This function will return 1 if it is a leap year, or 0 if it's not

sub LeapYear 
{
    my ($iYear) = @_;
    return 1 if ( $iYear == 1900 );
    return ( ( ( $iYear % 4 ) == 0 )
            && ( ( $iYear % 100 ) || ( $iYear % 400 ) == 0 ) )
        ? 1
        : 0;
}

sub LocaltimeExcel 
{
    my ( $iSec, $iMin, $iHour, $iDay, $iMon, $iYear, $iwDay, $iMSec ) 
+= @_;
    
    # Changing year and month to the right format
    $iMon++;
    $iYear += 1900;
    
    # Time calculation
    my $iTime;
    $iTime = $iHour;
    $iTime *= 60;
    $iTime += $iMin;
    $iTime *= 60;
    $iTime += $iSec;
    $iTime += $iMSec / 1000.0 if ( defined($iMSec) );
    $iTime /= 86400.0;    #3600*24
    my $iY;
    my $iYDays;
    
    # Date calculation
    $iY     = 1900;
    $iYDays = 366;
    
    while ( $iY < $iYear ) 
    {
        $iTime += $iYDays;
        $iY++;
        $iYDays = ( LeapYear($iY) ) ? 366 : 365;
    }
    for ( my $iM = 1 ; $iM < $iMon ; $iM++ ) 
    {
        if (   $iM == 1
            || $iM == 3
            || $iM == 5
            || $iM == 7
            || $iM == 8
            || $iM == 10
            || $iM == 12 )
        {
            $iTime += 31;
        }
        elsif ( $iM == 4 || $iM == 6 || $iM == 9 || $iM == 11 ) 
        {
            $iTime += 30;
        }
        elsif ( $iM == 2 ) 
        {
            $iTime += ( LeapYear($iYear) ) ? 29 : 28;
        }
        print LeapYear($iYear) . "\n";
    }
    $iTime += $iDay;
    return $iTime;
}

[download]

These are the modified functions I copied in Spreadsheet::ParseExcel::Utility. You can use them like the following (for example) :

($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime(time
+);
my $timestamp = &LocaltimeExcel( $sec, $min, $hour, $mday, $mon, $year
+ );
$timestamp =~ s/\./\,/;

print $timestamp;

[download]

Here, I convert the current localtime into what I need. I hope this will be useful for someone else.

Thanks Monks !

Varkh

In reply to Re: Using Excel timestamp with perl by Varkh
in thread Using Excel timestamp with perl by Varkh

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