// 7:32:56 pm on May 10, 1965
list($date_1_yr, $date_1_mo, $date_1_dy, $date_1_hr, $date_1_mn, $date_1_sc)=
array(1965, 5, 10, 19, 32, 56);
// 4:29:11 am on November 20, 1962
list($date_2_yr, $date_2_mo, $date_2_dy, $date_2_hr, $date_2_mn, $date_2_sc)=
array(1962, 11, 20, 4, 29, 11);
$diff_date = gregoriantojd($date_1_mo, $date_1_dy, $date_1_yr) -
gregoriantojd($date_2_mo, $date_2_dy, $date_2_yr);
$diff_time = $date_1_hr * 3600 + $date_1_mn * 60 + $date_1_sc -
$date_2_hr * 3600 - $date_2_mn * 60 - $date_2_sc;
if ($diff_time < 0) {
$diff_date--;
$diff_time = 86400 - $diff_time;
}
$diff_weeks = floor($diff_date/7); $diff_date -= $diff_weeks * 7;
$diff_hours = floor($diff_time/3600); $diff_time -= $diff_hours * 3600;
$diff_minutes = floor($diff_time/60); $diff_time -= $diff_minutes * 60;
print "The two dates have $diff_weeks weeks, $diff_date days, ";
print "$diff_hours hours, $diff_minutes minutes, and $diff_time ";
print "seconds between them.";
**The two dates have 128 weeks, 6 days, 15 hours, 3 minutes,**
**and 45 seconds between them.**